Astrosyn MY103H702

[rinderpest]

Here are the details of Astrosyn MY103H702 stepper motors.
They are about £35 +£12 P&P for 4 motors from Astrosyn Excess on eBay.
Im posting this because I just got an email from Astrosyn replying to my request for a torque/speed curve, apparently they were custom models that arent on their website. They are nearly identical to the L702 except that the windings are different and have more torque.
Outline data is in the image and the full datasheet is attached.
The torque curve attached is for the L702 which has pretty nearly identical mechanical characteristics but less torque.
It seems reasonable to just lift the curve a bit to compensate. Does anyone know if thats a bad assumption to make?
Frame size is NEMA 23, square frame 55mm deep.