Help needed

I don't think those are the right motor mounts...
The only time you need to use spacers on the mount ears is if you're using a 318 bracket on a 340/360- and it's only needed on the driver's side. The passenger side requires no spacers as the 318 and 340/360 brackets are identical.
Yet you have spacers on both sides... Are those even smallblock mounts? Looks like they're locating your engine too far to the rear and too low. A standard Mopar starter will fit with no problem, should not require a mini starter at all- Chrysler built hundreds of thousands of them that way with no issues. Same with the Pitman arm.
Get the proper motor mounts and everything should bolt right up.
(By the way, that is a smallblock K frame and not a slant 6 K, right? You didn't say...)
And just for clarification, these are the mounts-
Right:
2325-001__ra_p.jpg
Left:
2326-001__ra_p.jpg
Trans:
2512-000__ra_p.jpg