Ok, its not really that bad

One heater hose goes under the intake manifold and the clamp can be accessed between #3 and #4 intake runners.

The other runs to a metal tube that goes from the water pump and which terminates behind the motor. You'll need a flat screwdriver of decent length to get at the clamp, or a nut driver. Pulling this hose of that metal tube could be a challenge, and I would suggest cutting a slit lenghtwise along it and "peeling" it off.

Cut of the hose where they attach at the firewall too. It makes it much easier.

Autozone usually stocks both hoses. However, one hose on my '85 was a zig zag and the auto zone one just had one bend. It will still work fine. Also, don't be afraid to cut a little of the hoses, as they might be cut to fit and thus too long. Do not try to use non formed hose, it doesn't work well, the bends are too sharp.

Thats about it.