O.K., how long is the frame on your quick and dirty SD30-T2? When "Railroad Model Craftsman" published their infamous SD30 drawings, I thought there was an error: the unit was the same length as a conventional GP30 (in other words, they had just changed the trucks), whereas a real SD30 would surely have been on the somewhat longer frame used for earlier and contemporary SD units (SD7 through SD35 had the same length).
The T2 radiator installation was very long: the SD45-T2 was the same length (70'8") as the (four-radiator-fan) SD45X and (I think) the SDP45, rather than the 68'10" of the ordinary SD45-2. So I'll bet an SD30-T2 would have to have some non-standard long frame.
Nyaah, nyaah, nyaah!
(Nice picture though!)