The problems can be solved as I found:

1. I sanded the tie connectors with a flat file which took care of the problem of rails fitting without a Dremel or blade.

Also, with a small round, pointed needle vice use this on the end of the rail, so that rail connectors will properly fit.

Profit parts, then repaint ties, rails and spray rail bed and use granite texture pain over primer.

When all painted and put together then weatherize, this will eleviate your first headache.