Honda makes a kit to install A/C that comes with every nut and bolt you will need. If you give me the year of your Sol I can get you a part number for the kit. It probably will not be cheap, but it beats busting your ass looking for all of the components in a junk yard. Do it right the first time, buy it new. BTW, here are the instructions you will be using, I guessed on your year, but the install doesn't vary much.

http://www.hondaautomotiveparts.com/.../17204_01.html