The tricksters are infact a huge problem because they replicate. So if you don't kill them fast enough you end up with an overwhelming number of them. I had one spawn of theirs get so out of control I ended up killing like 50 of them and there were still dozens left so I just gave up and stopped trying. I believe if you leave the area and save/quit and reload the spawns reset, so try that. It's one of the big turn offs for me, for this modpack. One little trick I used to get rid of dozens of them was I carried a bucket of lava with me, and when they started swarming me, I enclosed myself in a cobblestone box and just kept pouring the lava out onto them (from above), recollect the lava and repeat until the bulk of them were dead and then I left my safety box and hunted down the remaining ones before they cloned to another 100. It was very time consuming though, it probably would have been better to just reset the spawn.
If you search NEI, the recipe for the first tinkers book is very easy, something like blank pattern (the same one used for the stencils), and maybe a book or something. And then the other books can be made by simply combining the 1st book with another blank pattern, and then the 2nd book with the blank pattern, iirc.
Rosite and Jade are meant to be super rare iirc. You can read about this somewhere like at the AoA wiki. If I remember correctly, sapphire is the best gem to make weapons out of, it gives you the best attack modifier. So don't waste any of it making tools. I'm just saying all this from memory, I haven't played ftb departed for a while, so just go look this up on the wiki to confirm.
http://adventofascension.gamepedia.com/Advent_of_Ascension_Wiki