I have a question for all the QIDI Guru's out there, (Yous guys)

I have found that I need to replace my extruder motors, and they are as follows:

42HB34F08AB rated at .8 amps.

I have found motors that meet most all needs except they are either 0.4, 1.2, or 1.5 amp rated....

Will this matter, or damage anything if I go up higher than .8 amps? Can the power supply handle it? Should I go with the lower 0.4?

Also, most of the ones found are a little longer at 40mm, versus the 34mm of the stock, will this effect anything??

Thanks in advance!!!

Also if anyone has a link to a replacement extruder motor that is pug and play let me know!!!