In my area, $4450 is quite high for a non properly restored 35 and even a bit high for a non restored 135 unless equipped with the Perkins 3 cylinder diesel engine and good tires.
The deluxe models have additional instruments, spin out rims, engine/transmission/ground PTO and usually power steering. Non deluxe models do not have the additional instrumentation or spin out rims and usually do not have the other mentioned features.
FWIW, very late model 135s have the 4 X 2 rather than the 3 X 2 transmission. These tractors bring premium prices, especially if equipped with the Perkins AD3 152 engine.
SDT