Why won't Cessna touch a perfectly legally upgraded 501? Simply because they are miffed that the customer did not chuck up 3 Million for a new plane?
Granted, today a conversion like that is of doubtful value, yet a converted plane which will outperform the newer airplanes at a fraction of the price, I wonder what is so bad about that.
I recall seing a Stallion conversion at a Citation service center not too long ago and the owner was raving about it. He apparently bought it due to range concerns with his Mustang. Sais it operates a sight cheaper and fulfills the mission profile better than the newer jet and he loves that he can fly it SP if he wants to.
What kind of figures do these planes deliver? I hear about 1800 NM @ 350 kts? Would not be too shabby for a plane which normally has problems reaching 1000 NM...