OK so judging from the other thread, you’re looking for someone to do this work?
What sort of budget do you have, or are you still getting costings to set one?
Some Googling around says … you’re probably about 20 years too late to get a semi-turnkey solution, although most kits are really just the physical mounts/connections. I think you’ll be paying for custom construction of all the mounts etc, it looks like the main kit builders switched to LS a decade or more ago … I don’t know if you’re aware of how much a conversion costs but it’s almost definitely into 5 figures to get someone else to do everything tow-in-drive-out.