Which shift kit, and what upgrades to go with it

[BigFish]

I am looking into doing a shift kit on my 2006 48re, and doing any other upgrades I can while I'm in there without pulling the trans.
From my reading I gather that either transgo or superior shift kits seem to be the go to on the 48re. Those of you that have them, which do you recommend, and why?
As far as other upgrades, what else should I be looking at upgrading while I have the VB pulled, that can be accomplished without pulling the trans? I'd like to beef it up as much as I can without pulling the whole trans for now.
As it sits now its a fresh (5k miles or so) stock rebuild with a sigle disc billet TC.
My primary uses are DD and towing, but would love to be able to bump the smarty touch up a couple notches and have some fun with the skinny pedal and not piss myself wondering if I just toasted the trans. As far as firmness of shifts, I have no problem with a firm shift or tc lockup as long as its not neck breaking.

 

[cerberusiam]

The Superior kits are easier and much less intrusive than TransGo. Seem to work as well.

What you can do with pan and VB off:

TCS No leak billet front piston
Billet Accumulator
Billet front band Anchor
Billet front band Strut
3-4 Accumulator spring
Boost Valve Retainer

DNJ Bilet gov housing with GM solenoid

 

[BigFish]

I have my carts at a few sites filled with what I think is everything you listed. I already have the accumulator springs and the boost spring and retainer. Also planning to order the superior shift kit.
Is there anything I got wrong, or anything else I should take care of while I'm in the trans that far without pulling it?

 

[cerberusiam]

I would go with the black TCS front piston rather than an off brand just because I know it works. Otherwise, it all looks good unless you want to install a slip in band.

 

[BigFish]

Noted, I'll check try again to find the tcs version. I found it on their site, but it wouldn't let me add anything to the cart on their site. Tried it both on my phone and my laptop. Perhaps I can find it available from a 3rd party site.
As for the slip in band, I haven't looked into the option. What would I gain by doing so, any better holding power or just a fresh one that'll wear longer?

 

[Ozymandias]

The Superior kits are easier and much less intrusive than TransGo. Seem to work as well.

What you can do with pan and VB off:

TCS No leak billet front piston
Billet Accumulator
Billet front band Anchor
Billet front band Strut
3-4 Accumulator spring
Boost Valve Retainer

DNJ Bilet gov housing with GM solenoid

All that, and the ROSTRA HD transducer.