I think you’re on the right track!
For good clicker training info I always recommend clickerbunny.com, or the book in the BB store.
When I train, I just use pellets as treats. They’re small and easy to eat, plus they’re healthier than a lot of sweet treats. Carrots and other veggies are a good idea too, though I like that pellets don’t need to be cut up or anything.
With my buns I never had much success “loading” the clicker by feeding and clicking. It wasn’t until I was teaching Otto tricks for at least a week that he really understood the clicking. It depends on the bunny though, but for a simple trick like standing up you can always just start teaching it by luring with a treat and clicking when you get the result you want. Eventually the bunny will put it together. I know that’s not the classical way to do it, but I found it worked with Otto.
Otto has never been particularly friendly and doesn’t like to be touched. When I was doing clicker training with him every day he because much much more friendly and actually liked being petted. I’m not sure if these two things were linked, but now he’s back to being a grouch (since being bonded with another bun) and I’m hoping that if I get back into the clicker training he’ll become more friendly again. He still remembers everything I taught him over a year ago (even unpleasant things like letting me touch his feet), but I need to start teaching him new things again.