They look to be the same type a APEXi coilover that I have, APEXi T-Max. They are height adjustable to a point, the rings around the strut casing with the C-ring in it allow you to reposition the spring seat to adjust the height, so height sould not be too much of a problem. Or you could buy some adjustable threaded spring seats, I had to replace the ones on the front of mine as you can tell by the pic. Since that pic I have also replaced the springs. Do you have the upper mount, spring hat thing? Can't see it in the pic. Not sure you could use the ones off the standard setup?? Its worth while getting the shocks checked aswell, mine looked to be in very good condition (still had the original bar code on them even) but still it was found the gas had leaked out which usually means the oil is not too far behind.
Also, I wouldn't get to excited about getting the rear strut brace, they don't really do a whole lot compared to the front, unless you are looking for the "look", alot of money for the "look" though. You would be better advised spending the money on getting the rear shocks and springs sorted or some adj. sway bars