[Bad Apache]

Unless you have access to a press, I don't think you'll be able to install the new bushings. You can be "brutal" removing the old ones, but not the new ones. There are a couple tricks to getting bushings out. One way is to drill lots of holes through the rubber part of the bushing to the point of failure. Then you can you a chisel to bend the steel sleeve in in several spots, weakening it's grip on the a-arm. And then tap it out with a punch. Some guys burn the rubber out but I don't recommend doing that on new TCI arms, lol. A deep hole saw can be used to weaken the bushing as well.
Sorry, no suggestions on the bushings. I'd stick with TCI unless they state the bushings are brand X.
Good Luck!