hehehehe
sorry to laugh, but i had the same thing happen to my box after racing at wanneroo - and i was in the middle of a hillstart at the time it blew!!! just had to roll it backwards down the hill and call for a tow too.
undid the sump nut on the box and allki got was this "tok-tok-tok-tok" sound of ballbearings falling outta my box....
the only remedy is another box at that stage, the shafts will be pitted and the journals will be scored to the sh1thouse, so a recond box is the expensive option out (esp. at $2k!!!).
dellow have a bellhousing and gearbox kit for the celica 5spd onto the A series for around $1750. the boxes are inspected as well. why would you recon a g'box for $2k when you can have the best shifting box on the planet for $250 less...?!