Yet another buffoon posting by CJ Campbell. First of all, you know nothing of Skymasters as demonstrated by your post. The "P" Skymaster was developed as a pressurized airplane (has a 3.5 dif) and the windows are such, and there is a difference between "P" windows and normal aspirated. As far as service ceiling, at FL200 the cabin of the "P" is at 10K.
The overheating of the rear engine is a myth, brought about from the days of the 336 which had an entirely different cowl for the rear engine. The 337 cowling did away with that.
As far as your story of the O2, it's total bull****. O2's were never outfitted with ejection seats. And besides, even a collapsed nose gear on landing will be like any other plane, banged up prop and scratched up.