I run trackick PS and have no issues. It is not full hydro, so I don't treat it like it is and don't expect it to perform like it is. It may not be the best PS setup out there....but it works fine for me and is a hell of a lot better than manual steering.
Any PS setup off any trackick 1.6 will work (so any 89-98 with a 1.6). The only difference between 16V and 8V PS is the placement of the holes in the pump bracket (there is about a 1/4" difference), where it mounts to the block. The hole difference is not a big deal, if you are building your own swap kit. I'm not sure how the vendors brackets compensate for the difference in bolt hole offset (or if they even do....I don't know that I have seen any mention of different conversion brackets for the different pump brackets, or a mention that you have to use either an 8V or 16V pump bracket with their kit).