You dont need the heater stuff for cooling.
Get rid of it all.
Mine has a full interior with a stereo.
The jack is a pain. You just have to keep messing with it.
You will need to front brake lines (including the ones from the master to the dis. block)and distibution block from a any 1g non abs e/t/l.
You can loose 50lbs just by scraping the floor and taking out the big rubber mat on the inside firewall.