Any recommendations on what mini starter to use ???

I personally have used expensive ones & cheaper ones. Never had a problem with any of them. They can be tricky sometimes to get lined up with the flywheel properly. My Dodge is a high HP engine with high compression & I purchased a cheap mini starter for it 5 yrs ago  & no problems.  I did wrap the header near the starter to keep the heat down.

I had a starter problem a couple years back...finding out the armature was 'pulling' away from its ground when the starter was hot. I could always start the car, but I had to wait for the starter to cool down 20 to 30 minutes. You know this was aggravating.  The starter was original up to that point. So, I replaced the starter with a rebuild, added the shield, and wrapped the exhaust pipes from a little bit in front of the transmission to past the starter for a few inches. Problem solved.