I finally got around to taking a picture of the mounts. Looks like the front is a hole, and not removable (without removing the whole panel which I will not do). The rear "hook" mount looks to be removable. As long as you have the plugs for these (and they look ok to me) and you already have...
I have one of these just sitting in the garage, probably only used it once. I live on the other side of the country, so shipping may be a little high (I would guess $15-20, but can get a quote from UPS).
How bout $50 + shipping?