Last transmission bolt - TDC

We were foiled tonight taking the trans off..thought we had every bolt out , jack under the trans to support it and wiggling wouldn't do nada..missed one bolt TDC of trans behind the /6 engine.

We only have normal tools..open ended boxes and sockets..

Sockets will not go on..cannot seem to get to it from the bottom and with out 9/16 open ended box, we cannot get enough leverage.

We soaked it with penetrating oil and shut down...I have a hydrolic jack under the trans but blocked it with wood as well.

Any thoughts on how to get that bugger out ?

As well, I read the haynes manual that I need to jack the engine up an inch..we will be renting a hoist soon but do we need to do this ?

Your help,as always, is appreciated.

Ian.