Would YOU open this vault?

[Dragonboneman]

Chardump here: http://angband.oook.cz/ladder-show.php?id=7106

I just encountered a humungous vault at 2000'. I took an HTML screenshot, but it doesn't seem to want to upload.
Anyway, the vault resembles a Union Jack, and here's a few of the things I've found in it:

Great Hell Wyrm
Ibun, Son of Mim
Great Crystal Drake (I don't resist shards)
Feagwath, the Undead Sorcerer (37 levels out of depth)
2 Ancient Green Dragons
Ancient Multi Hued Dragon
Ancient Gold Dragon
Death Knight
2 Ancient Blue Dragons
The Queen Ant
Ancient Red
Ancient Bronze
Hand Druj
Vampire Lord
Several Inertia Hounds

And some of the goodies: Shield of Deflection
Mordenkainen's Escapes
2x Dagger 2d4
plus assorted weapons and armour, although nothing else with unusual dice.
Given my current level and the fact I have less than 200 HP, I think it's best to leave it alone, to put it mildly.