I'd be happy to loan the offset wrench I have made to anybody, but would need an uncomfortably hefty returnable deposit ($200), because of all the tools I have ever loaned out, not a single one was returned without me having to ask for it back. This is why my father just outright tells people no, as using tools were how he made his living for the first portion of his career.
I don't sell the torque rod bushings, but I would be happy to drill and tap them for anybody same as I did mine, for free, for anybody wanting such. We have the lathe and mill at my work, and it only took me a single lunch break to do all 12 of mine. One would just need to have them sent to my work address when buying them, and then pay the outbound shipping cost from here to you, and they are heavy chunks. Much lower shipping price if ships out of here to a "real" business address (not home based business). The plates I custom ordered from a steel supply company off eBay, they simply cut the discs to my spec and sent them to me. You could do rectangles if you were concerned about rod twist contact. Fasteners are fasteners.