Where can I buy a 4.0L block?

[Jeepjunkie]

I just blew my motor from an unfortunate weelin'event (hydrolok). The top half of the motor still looks OK but the block has a hole the size of my fist through it. I need to know a couple of things
1. Will a 91 HO head fit onto any 91-96 block?
2. Where can I buy a motor without getting raped?
3. Is there a place that you can buy a 4.0L block already built up (different cam, pistons, rockers)?
Any info on this subject (accept for put in a V8) would be helpful as this is my first engine swap.
Thanks,
Mike

[waynebo]

you can try manciniracing.com they are a mopar performance dealer.waynebo

[waynebo]

also thinkjeep.com