Part of getting it back on the road safely is to drain and flush the braking system, rebuild or replace brake cylinders and calipers, and replace the brake HOSES to all four wheels. Everybody forgets the brake hoses, but they are surely as old as the car, and by now they're in bad shape. If one pops, you're in for a wreck. No backup braking system on that car!
Even if they work in the shop, don't put it on the road without going through the braking system. I've done this, and trust me, brake are highly neglected and potentially dangerous.
And frankly, I'd rather have a 912 than a 911. Smooth styling, adequate performance, and a lot of class. Also less high-strung and possibly easier on the parts budget.