3-Link rear suspension torque are questions

[Stg1Regal]

Done some looking into a 3-link torquearm suspension,like what I see, but I had a couple of questions.



If my car, a G-body ( 82 Regal),dosn't have a kit out on the market for this set up, how does one determine the correct torque arm length?



And for that matter, where to mount the front pivot point.



I know a Watts link will be needed and seen the one from Marcus at SC&C and will likely go that route.



The reason for my asking is... seen over at the BMR website the big plate mounted to the rear of the diff,then covered with a Diff cover, and all the torque arm mount points were incorporated into that, wonder if possible that idea and design one myself, or found one of DENNIS KIRBANS replicated GNX diff covers and design a torque arm off it.



Any way shape or form a decent front mount is required, all the ones I seen, seem to mount near or around the trans out put area or even on the trans crossmember itself.



I have one of the CROSSMEMBERS.COM dual hump cross members, maybe thats a good spot.



Are there any good suspension websites to go too, to determine the length and geometry of the 3-link?



Again thanks ahead of time