I have VT and Rouge trans mounts and like the combo. Did them both at the same time, so can't say if OEM trans would have been better, but it sure didn't make things worse.
McMaster Carr is a good source for the bolts. You'll also need washers. Some use OEM, some use Nord-lock washers.
90854A167 High-Strength Zinc Yellow-Chromate Plated Cap Screw, Class 10.9 Steel, M8 Full Thread, Pitch: 1.25, 25MM LG, packs of 25
90854A172 High-Strength Zinc Yellow-Chromate Plated Cap Screw, Class 10.9 Steel, M8 Full Thread, Pitch: 1.25, 35MM LG, packs of 25
https://www.mcmaster.com/
Salty