The long bolts in the pic ended up being too long, so I used the shorter ones. The ARP ones are for the flywheel.
Got it test fitted and up in the air. So far all the holes are lining up very nicely, and he's included about 95% of the hardware needed for this whole job which is excellent! I need to run to the hardware store to grab a few more bolts for the bottom portion, then will be dropping it into the engine bay to make sure everything fits.
