Just bring it to an apholseterer for the seat staples, they do awsome work. The buttons on my seat were ripped when I got it and literlally took under 2 mins from the time I handed him the seat, he installed all them, then handed it back, looks perfect and costed $5. I highly reccomend this.
Akrievins, if you have never had the seat off before, dont be afraid, I guarentee its the easiest thing to do. On my buddies exciter, there were two phillips head screws to undo close to the front of the seat, then two 10mm nuts to unthread under the seat in the tunnel and off it came, along with unclipping the wireing. It literally took 2 mins to do, not even rushing either.
BTW, studs on the phazer will be a super tight fit..... Me and my freind are looking for a new motor for his exciter right now, but once we do, might stud it next season. But then again, thats a liquid cooled, with heat exchangers, and these were the closest contact points for the studs, and since your phazer has none, well, tough call...