The main reason for the do-it-yourself approach to this job is that it gives you time to cleanup, detail and paint all the parts before they go back in. So I just drop off the control arms and parts at a shop to have the bushings and ball joints installed. With the proper tools those guys can knock it out quickly so not much cost involved. I only tried doing it myself once and it was definitely not worth it.
Doesn't seem that the mice were afraid of the spring pressure