pillers

hi, first of all i know this question has been asked loads but i have another to ask. First of all where can i buy these pillers from, and are they similar to the standard look of a LCR, also which gauges have you guys used?? would boost and oil temp be a good choice?

right i want to mount some tweeters into my A pillers for better vocal responce. i have had an idea to cut out a hole in the A pillers big enough for the tweerer, then fibreglassing it to make it smooth. i have no idea how to fibreglass and do it all myself, does anyone know where i can get...