A standard resin is all you'll need... just make sure you do a small batch test of the resin to get an idea of cure time and all.. A gallon is a good start, you might consider 2..
AFA the glass, the lighter and thinner, the easier... But it takes more time and layers... Heavy glass.. well, it's harder to make contours with, and sometimes "lifts" when going into tight areas
Fabric store... bah, dollar store or walmart.. Buy a lap blanket, or buy a HUGE blanket and get more for less..
Filler will always have a use if you do this stuff... it's good to have around.. Get a gallon..
If you do glue the kicks down with silicone, make sure you get a "piano" wire and bury it in the deepest corner... That way if you DID want to remove it... You could just grab the piano wire on both ends with vice grips and CUT your way out..