This is my suggestion, even though mageblade was dorked and the infamous gate 7 of labyrinth seems kinda impossible now for mu/oc, I will give you my suggestion.

This is also for Mu/OC, not OC/Mu. It gives you Reg (non-uber) Haste, Sanc, Air, SSkin, Mag Vest, Imp. Invis, Mantle of Truth (most likely has to be used now to get to -151 ac, which you want for lab), Armor, Shield, Heal Critical

Also, for killing: slow, fireball, mageblade, hope, blind, still, (blind/still is nice for lab )

At T60 have:
Magical: 60 65 125 130 60 (dont spend anymore. if you do, put any extra even # in mspirit) note: as elf you have +15 mearth, +15mwater (so you study 50, and 110, respectively)
Physical: put all 120 physical in P-Air.

At MT90 have:
Magical: 170 50 80 80 130
Physical: 0 15 15 120 0 ...(120 pair elf dodge is good)

now with this spread, and using weave 'shield' you will meet the Delement requirements for PFC and PFH. endure element robe wouldnt hurt.

in addition, depending on the Mfire eq you can get, your hopeful clantown bonuses, the reason is you will want to have 200 MFIRE and as much MSPIRIT as you can with your equipment (ATTR elements) so, it may be you dont need to study 170 in mfire. Maybe study 160 and put the 10 in mspirit. either way, you want 200 mfire for max fireball, blind, etc. i would suggest getting to 130/130 mfire/mspirit, and then see what kind of eq you can get and clantown building bonuses you can get. then spend the rest from there.

Good items to help obtain 200 mfire are:
deep red orb crystal (light), froboz robe (neck), vest of phoenix feathers (body), soot gauntlets, etc..
Good items for +Mspirit include:
Lantern of exalted, ancient periapt of time (neck), shawl of the gold ajah (neck), long platinum robe

for the rest of your EQ, i would suggest major +HP tweaks. and -AC if you can. Steel leg plates, and steel arm guards (both enchanted) are a must usually to reach -151 AC usually, and like dark blue sapphire bracelets provide some +HP and -AC i think. though the way you custimize your +HP and -AC is up to the end user :D

I hope this helps. I know when i was starting out (Mu/OC is still what i play) this kind of info would have helped out. If you need any other help just send me a tell sometime, or mudmail me! Oh yeah, mu/oc's shouldn't go into lab without a pocket golden hourglass!!!

Hope this helps!

Best, Nyv