You can get the radiator direct from IPD, and it's a direct bolt in. As to the transmission cooler mod, you can get an auxillary cooler from lots of sources, and add it in front of the condensor.

I would not get rid of the A/C system (remember we live in Florida), but would instead convert it to the R-134A system. I had mine done years ago, and have never been sorry.

The radiator part # is: CC1378590. The price is $175.06 plus shipping. It carries a one year warrenty. The shipping is calculated at the 30# rate, due to the size of the box. It's an all metal radiator, rather than using plastic tanks as the original version did. I'd replace the thermostat and the hoses at the same time. Be careful with the transmission line hook-up, since they can be cross threaded very easily. You might consider getting a heavy duty fan clutch at the same time (called a swamp cooler).

Bill