Im doing a rebuild with 2 15inch BTL's. i already have 1 18 and i plan to recone it to a 15 (got a really good price i couldnt pass) and now i am looking for another ufo magnet. i want to build these woofers for the experience and to save a little$$. please let me know any info on a cheap btl or a UFO magnet for sale. Thank you.