Suggestions/help for my 440 build/swap

There is a set of mounts listed in the for sale section at a decent price.
The heater motor will need to be modified, there are a few of these mods in the how to area.
Sure grip a quick check is if the rear axels spin in the same direction or pull the cover, you wil want to change the fluid also. If it is a 8 1/4 rear you can steal the rear disks off of a jeep. There are threads on this, easy I did mine..
Ignition wise a stock distributor will be fiine if it has the right curve.
Power brakes you will need to offset the booster.
Cooling I run it stock on the motor, but a 3 row radiator with dual fans.

I have been there so I get it. One thing I regret not doing is drilling out my inner fender so I can get ay number two and four spark plugs easier that two wrenches from the top and botom.

Hope it helps.