Crawl Advice Requested

What would you do in this circumstance?

Or:

 ........#             
 ......###             
 ......#               
 ......#     ######### 
 ......#     #))/?(|)# 
 ......#     #N[)::()# 
 ......#     #(?!!?|!# 
 ......#     #?/)!))!# 
 ......#########@##### 
 ....................# 
 ###################.# 
 
 You can see a guardian naga.

Excerpt of the Character Dump is below. I'm not very happy with the progress of this character, I've been quite unlucky so far in terms of armour and non-weapons, but I'm not convinced that I should take on the Naga just yet. I do have plenty of escape options, and I'm definitely not entering the vault itself, but I do not have Oka's haste ability, and I think that could make a big difference.

 Dungeon Crawl Stone Soup version 0.4.5 (crawl-ref) character file.

Bob V the Basher (Mountain Dwarf Fighter)          Turns: 13955, Time: 01:32:41

HP  84/84        AC 18     Str 23      Exp: 10/8562 (79), need: 1525
MP   6/6         EV  6     Int  5      God: Okawaru ***
Gold 375         SH  9     Dex 13      Spells:  0 memorised,  9 levels left

Res.Fire  : . . .   See Invis. : .   y - +4,+2 hammer of Turmoil
Res.Cold  : . . .   Warding    : .   R - +0 plate mail
Life Prot.: . . .   Conserve   : .   c - +1 dwarf shield
Res.Poison: +       Res.Corr.  : .   (no helmet)
Res.Elec. : .       Clarity    : .   D - +0 cloak
                                     (no gloves)
Sust.Abil.: .       Rnd.Telep. : .   j - +0 pair of orc boots
Res.Mut.  : .       Ctrl.Telep.: .   (no amulet)
Res.Slow  : .       Levitation : .   w - shiny marble ring {tried}
Saprovore : . . .   Ctrl.Flight: .   L - iron ring {tried}

@: praying, quite resistant to magic, extremely unstealthy
A: no striking features
a: Might, Renounce Religion


You are on level 3 of the Lair of Beasts.
You worship Okawaru.
Okawaru is greatly pleased with you.
You are full.

You have visited 3 branches of the dungeon, and seen 13 of its levels.

Inventory:

Hand weapons
 e - an uncursed great mace
 n - an uncursed runed halberd of venom
 o - an uncursed sling
 r - an uncursed runed dwarven short sword of electrocution
 x - an uncursed mace
 y - the +4,+2 hammer of Turmoil (weapon)
   (You found it on level 4 of the Dungeon)   
   It inflicts extra damage upon your enemies.
   It protects you from poison.
   It increases your resistance to enchantments.
   It speeds your metabolism. 
 E - the +4,+0 mace of Abomination
   (You bought it in a shop on level 5 of the Dungeon)   
   In the hands of one skilled in necromantic magic it inflicts extra damage 
   on living creatures.
   It affects your AC (-1).
   It affects your dexterity (+2).
   It protects you from poison.
   It increases your resistance to enchantments.
   It enhances your eyesight.
 F - an uncursed mace
 I - an uncursed glowing orcish hammer
 T - a hand crossbow
Missiles
 s - 18 poisoned elven needles
 t - 5 dwarven darts (quivered)
 v - a dart of ice
Armour
 c - a +1 dwarven shield (worn)
 i - a chain mail
 j - a +0 pair of orcish boots (worn)
 D - a +0 cloak (worn)
 R - a +0 plate mail (worn)
Magical devices
 b - a short gold wand
 J - a wand of magic darts {zapped: 1}
 K - a worn iron wand
 P - a wand of flame {zapped: 8}
 Q - a wand of slowing {zapped: 1}
Comestibles
 d - a bread ration
 k - 8 grapes
Scrolls
 f - 3 scrolls of detect curse
 p - 6 scrolls of remove curse
 q - 7 scrolls of teleportation
 G - a scroll labeled PUENLO SKOTAM {tried}
 M - a scroll of blinking
Jewellery
 m - an uncursed ring of wizardry
 w - a shiny marble ring (right hand)
 L - an iron ring (left hand)
Potions
 a - a potion of healing
 l - a potion of cure mutation
 u - 2 potions of restore abilities
 z - a potion of heal wounds
 B - 2 sedimented black potions
 C - a cyan potion
 H - a fizzy red potion
 U - a brown potion
Books
 A - a paperback book
 N - a book of Minor Magic [frost]
 O - a book of Minor Magic [flame]
Magical staves
 g - a long smoking staff
Miscellaneous
 S - a blazing lamp


 You have 79 experience left.

   Skills:
 + Level 8 Fighting
 + Level 12 Maces & Flails
 + Level 8 Armour
 + Level 9 Shields
 + Level 1 Traps & Doors


You have 9 spell levels left.
You don't know any spells.