4-Speed Rebuilder Recommendation

I’m looking for someone reputable to rebuild my A833 four-speed transmission. Passon and Brewers are backed up until fall (I can’t even buy one out right). I’m hoping someone can recommend a third option preferably someone with direct experience rebuilding the A833.
First, I would not let Passon touch anything of mine. Second, if you are a decent mechanic, do it yourself as mentioned below. I converted my car to a four speed about 20 years ago with a used transmission. I rebuilt it myself. It was VERY easy.

It’s a fairly simple process. Jamie sells the book and I get the parts from Brewers. The kits are cheap and it is pretty straight forward. Understand if you don’t want to tackle it yourself.
Totally agree.
Aren’t there some special tools required?
You will only need some good snap ring pliers and regular hand tools. I had an article from an old Mopar Muscle Magazine and pages printed out from a repair manual. I did take a shaft down to a local transmission to have them press a bearing off and on. I had them install some synchonizers that went on that shaft while they were at it. I did everything else myself.