I considered the Quadfires, but as I recall, they're quite heavy. Around 3 pounds each. I'm afraid that would place far too much stress on the plastic where you plan to mount them. BTW, my local Wal-Mart has them for $38 each and Wal-Mart on-line has a kit with two lights and a wiring harness with switch for $48 IIRC. If you go with the Quadfires, I would try to find someplace more substantial to hang them other than the plastic.