Something else I'd like to mention. I've been considering a T-5 for my Sunbeam Tiger since I got it. Still on jackstands after 16 years it is more concept than "ready to do." But since I'm hoping to finally get back to it later this summer I've been scouting out the T-5 with greater interest. As most know I'm a "Pick Your Part" kind of guy. At their 40% off sales I can get a T-5 out the door for right around $100. And, that would be the only route I'd go to get one.
So, what I've found is if you want the 3.35 first gear, like the original poster mentioned, and World Class version at that there is only a 10 year range (85-95) they were available. And, that means that they are all 20-30 years old. You don't get a 300 ft. lb. trans until the last 5 years (90-95) and many of those available are the 265 ft. lb. rated 3.8 V-6 transmissions in 94-95. Lastly none will directly bolt to the 2.3 as the input shaft is different. If you want a direct bolt in T-5 for a 2.3, then you need a 2.3 T-5.
Even in the case of my Tiger I have a 5 bolt 289. It has the vertically oriented bolt pattern (trans to bellhousing). So, I either pay $ bucks $ for a dual pattern scatter shield, or get myself a 6 bolt block (like a 302 / roller).
I said all that to say this, the T-5 is often lauded as a universal trans with a lengthy pedigree and adapted to many unique situations. But, even in the Ford domain where it was liberally used there are a plethora of "yea..., but's" that need to be overcome. In the end the cost to adapt the transmission may not return the time and cost invested.
With my Turbo pinto the factory '88 2.3 t-5 is manageable. The engine is other wise stock and the transmission within the range of the build. With my Tiger the real problem is a 2.32 first gear on the close ratio trans. The wide ratio Toploader is 2.78 and far more ideal. One other option is a Jeep Toploader, the T-178 that had a 3.01 first gear and even spacing. But that transmission has proven to be extremely elusive since most Jeeps had the granny gear 176 & 177's. To add to my insanity I have a 63 Rambler American I want to adopt a Jeep 4.0 into. That engine had a zillion transmissions hung behind it. But, in almost ever case there is a "yea, but" that kind of negates an upgrade that would be reasonable to accomplish. And, yes, a T-5 is one option "BUT..."
Sorry to rain on the parade but there are storm clouds on the other side of that there hill (so to speak).