Let me be more specific in order to NOT offend anyone. To take a 911 and remove the engine for another brand of engine and go at great lengths to engineer it to fit, the new engine or solution would need to have many benefits over the original motor. The LS1 makes perfect sense because of many factors: more power, reliability, efficiency and in this case, less weight. To remove 50 pounds or even 100+ would be a huge benefit. To me, you have removed a lot of weight and now are putting it back by installing a radiator in place that does not improve weight distribution, only makes it worse. I am sorry, it makes more sense to place in the radiator in front of the car, also receiving direct air-flow.
I am, however, interested in seeing if your solution works well.
