I'm actually really surprised you were able to get your caster back into 'the green' after installing a lift. I have full OME suspension on my 08 Tacoma (886s and Nitrocharger Sport shocks up front, heavy leaves w/ AALs and Nitrocharger shocks in the rear). After I installed the OME suspension, I ran it about a year with the stock UCAs before I installed Light Racing UCAs, and IMO the LR UCAs made a huge difference in the ride of the truck. If I were to start over with a 2nd gen Tacoma build, I personally wouldn't consider installing the suspension without doing the UCAs at the same time. The truck feels more stable at speed, it doesn’t wander or track with the road nearly as much, the steering is much tighter, and the suspension handles bumps so much better.
With a 2"+ lift and the stock UCAs, the toe and camber were able to be corrected, but the caster could never be brought back into spec (this is a well documented issue for 2nd gen Tacomas). The more positive caster you're able to get out of the suspension, the better the truck will ride. IIRC, the most positive caster they were able to get for me before the UCAs were installed was ~ +0.7º. Now with the LR UCAs, I'm over +2.0º on both sides, and it's amazing what a difference it makes. One thing to note, however, is that when I replaced my UCAs, I had ~130k on the truck, so the stock UCA bushings were undoubtedly worn. The new bushings was likely some of the improvement I felt after the install.
I was actually impressed with the build quality of the LR UCAs, especially their ball joint. I personally was not interested in uniball UCAs because I don't want the maintenance hassle of the uniball, so the LR was the best choice for me. When I bought mine about 2 years ago, Headstrong Offroad had the best pricing on them. Not sure if that's still the case or not.