Calling all 2L 8Ver's!!!!!!

[scourge at cogeco.ca (Scourge)]

Hey

I've found a low mileage ABA(100k kms) for sale in the area. The guy wants $300 CAN for it. Is this a reasonable price? 
What all will I need to use this block(I'm looking at you mark!)? I want the keep the JH head and stick with CIS. All I want to do is change the block.
I know I'll need a longer downpipe(I'm in the process of ordering one so this came at a good time). Will the JH distributor work? or will I need some sort of adapter or some hybrid thing? Will all coolant/oil pasages line up, or will I need to modify something?

Also, does anybody know the compression on these? Will I NEED a knock box? If it matters this is an OBD2 block.
Anything else I will need to buy to put this in??  
Thanx Muchly
 -George