904 internals

I'm up to the stage of getting parts organised to build up my 904 trans.

I've been looking around for days and sent countless emails but thought I'd ask the question here. I have a complete stock trans and I'm after EVERYTHING I need to r&r

My combo is a efi 318ci, 75mm single turbo. Looking to make around the 600hp on e85.

Having had no previous experience with chrysler transmissions. What internal components to people recommend?
Some kits you buy (from tci etc) include clutches, seals. But no bands etc

Some other kits include the bands but no clutches... A bit confusing.

It will be a 75% race car with occasional street duties. So id Rather it shift too hard then not hard enough.

Physically building the trans is no problem, just locating the right parts for the job!

Thanks in advance
Wardy