Budman,
There was an earlier thread close to this topic and I'll copy from that thread:
The large majority of us step the mast by leaving both sidestays connected but the forestay (the cable that the jib slides up on) loose. Most cats now also have a captive mast base that eliminates the need to tie the base down during stepping. Whether you have a captive base or a tied down base, the stepping procedure is pretty much the same:
Have the mast on the ball and someone holding up the rear of the mast that should now be pointed straight out to the back of the boat. You (or whoever the strongbody is) are standing on the trampoline as your assistant walks the mast up to you. Once they've reached the limit of their reach, you give it a good heave - trying to keep some downward pressure on the mast base (if yours is not captive)- and you should find it needs very little forward stability once you have it on the ball, raised, both sidestays still attached. While you hold the mast upright, your assistant should attach the forestay. There are ways to do this by yourself but I recommend you try this several times with assistance before considering trying.
As far as hull preparation - I highly recommend the 3M fiberglass restoration products. You WILL need one of the powerfull grinder type buffers (a random orbit buffer will not cut it). The 3M products have both a rubbing compound and a wax in it. Once you have refinished the gel coat, just wax it a couple of times a year and it will stay shiny. While pledge might make it look better, I imagine it could be kind of greasy (the last thing you need on a boat).
WD40 is a bad idea - it is a wet lubricant and will adhere dirt and sand to the very place you are trying to lubricate. Use a dry silicon lubricant instead.
Good Luck and welcome to catsailing!!!!