Google is your friend, however....
Use your stock transmission mount (if its manual) and your drivers side mounts. You will need two mounts off of a 99-00 si, the rear T bracket (50827-S04-N10) and the mount/bracket behind the timing cover (11910-P30-000) and 2 studs (90041-P01-000)
For the A/C you can use a del sol vtec or a crv/b20 bracket (38930-P7J-000), I can't find the # for the del sol bracket, sorry. Depending on which p/s pump you have you will have to find the right line.
Good luck