New to forum, 65 fastback, suspension questions and advise please.

[Young65gerald]

I'm building my 4th mustang since my first frame off in hi school on a 66 coupe way back in 1983. Have had and sold a 65 coupe/pony interior and AC. Had a orange 65 fastback and had to sell to put money down on first house!,
Now that wife is gone and new wife loves my love obsession with mustangs. I was born the great year of 65 so they r in my blood. Well that's a short intro. Hello all!!
Now I'm gonna start some ruckus... Because I know ya'll are opinionated from some other posts I read. I have recently purchased a very clean65 fastback 6-cyl car. That I want to completely restomod/pro-tour. Big engine, 347stroker, or maybe a new coyote? 5or6 speed, Haven't made mind up on that. What I need opinions on is the Schwartz performance chassis for the 65-66 mustangs. I've priced out whole packages front and rear systems from heidts, TCI, TCP, Rod & Custom, i mean complete all the way to the 12"willwoods, and complete free floating 9" rear with disks. I can't c where u can go wrong with the shwartz chassis. It's base components are very high end and seem to be very well thought out. And cost is equivalent once you add all the extras to the kits, including frame connectors, complete rear end, etc..
I need opinions!! Suggestions, Good and bad. Would love to talk to some 65-66 owners that have installed the Schwartz chassis. Ok. Give it to me. As I am ready to pull trigger on some system soon.

[Godbolt]

I can't give an opinion on the Schwartz chassis - certainly looks good but I would also factor in these guys-

http://cortexracing.com/product-category/1964-1970-mustang-vintage/

And Griggs Racing

[pro67coupe]

The issue I had with going with Schwartz or the roadster shop was there is a lot of hours required to make a new floor so the body can sit on the chassis. If that isn't a big deal to you then either would be awesome

[Young65gerald]

From talking to them, The only required floor work is welding plates to the existing toeboard area. The frame is indexed off of a bracket that mounts to the rear spring bracket, and the after cutting the front clip off, the schartz frame is welded to the toeboard area, and bottom of floorpan. I can see you would have some floorpan work of your existing floorpan was rotten, but you would fix that anyway? Mine is in good shape.

[rusty428cj]

I have a customer that told me about them and wants us to install one in his 1969 Mustang body that he recently purchased. I looked at their website and it looks like it would be a fairly simple install since you keep the stock floorboard and rear frame rails.