Super1c- So if you check out some of the seat pics u'll see the Lake effect riser I purchased. That riser comes with a provision for the ram mounts. I used that and just bought the ram mount for my nuvi. So what I did with the cover was cut an x where the GPS was mounted and just peeled back the material and duct taped in place to make sure the hole was in the right place. Once I was sure on that, I took it to a local upholstery shop and had them sew velcro on three sides of the hole and cut out the center on my spare handlebar cover I had bought for this from a swap meet to use as the cover. I hard wired a 12v lighter socket to the sled. I don't have a battery so I spliced into the brown wire on my sled (i have a post on that). I don't know yet what the voltage is coming out of the brown wire so I am hesistant to plug my GPS in yet.
Devin- I put too much money and time into this seat to ever tell anyone it is worth doing rather then going out and buying a boss. If I had to guess how much money in labor and materials I would say easily around $1000. The only reason I didn't go buy a boss was because I wanted something I made on my own. If I had to do it again I would probably just buy a boss seat. I appreciate the interest in the seat though.