T5 Pulleys and belts - Advice sought

[cropwell]

But now lets step back. Why 4.5 Nm steppers? Most used steppers here on forum are low inductance SY60STH86-3008B Nema 23 Stepper motor.

It would be wise though to make all so, that later could fit 25mm belts if needed.

Thanks Sylv. The steppers I have in the cupboard are 4 of Nema 34 4.5 Nm and 4 of Astrosyn MY103H702. My spindles are Kress 800 or 2.2Kw water cooled. So guess my choices
I think I will investigate AliExpress as belting online want about £14 per belt and I need 4 and £6.25 per pulley rising to £15.72 according to machining required ( I need 8 of those) So that brings it up to £180. Quite a price Eh !

Regards, Rob