Well, I didn't keep the original electonics. Wedgeman might help with some specifics there.
but I did drop a 5.9 into my b-body.
http://www.dodgecoronet.com/forum/showth...&highlight=

some of that may or may not help you.
won't say you will have less issues, just different.

you need the 360 LA pan and LA gasket for it.

I would recommend you find the van power steering unit/bracket to tuck it back in a little. will require a different belt.

I got the shumaker mounts, but you could use spacers instead.

There were a couple of people that cut the pump out of the truck and had it welded into the car tank as I recall. Allows for a returnless pump system. I didn't want to go that route.

Wedgeman managed to just wire up power to it and left it an independent harness for the computer and I believe used his own gauges.
I have no idea how you are going to cram truck gagues into an ebody. but more power to you.