Parallel 4 Link Spacing

[Simmo]

I'm in the mock-up/planning stages of a mini-tub/4 link build. Trying to package a sway bar, watts link, coil overs and four link brackets into a narrowed 9 inch rear is proving to be a bit of a challange....haven't even thought about the exhaust yet lol.

My question relates to what are the negative effects of having the 4 link brackets relatively narrow (28 inches) as opposed to as wide as possible (rails are 38 inches inside/inside). I can run them wider by incorporating them with coilover mounts - which will be set out at the extremities - but that will require a re-work as far as the swaybar is concerned (upper arms will conflict when set @ high AS #'s). I get how this would effect roll centre for a T4L for a given UCA angle...but I'm a bit lost as to how it works with the bars parallel in plan view. Oh, and ignore the parallel bit it the title, it'll be parallel in profile view only some of the time, kind of an adjustable 4bar/4link hybrid.

If someone has come across a good book that covers this sort of thing I'd appreciate a link....got a few gaps in the skill set at the mo