Getting into Bags?

I have a Jandd handle bar bag that I use all of the time, their stuff is very durable and so not the lightest.

To be honest there is likely no high quality, cheap answer, you might be able to find a local company that can make something similar and that might be faster but I doubt it would be cheaper.

I made my own frame bag and handle bar harness (if you are putting a sleeping pad up there all you really need is straps). The frame bag was a pain in the ass and I have done some sewing in the past, by the time that was done I had had enough of the sewing machine. For the harness I just used a sewing awl (a hand held needle and spool type thingy) to attach a couple of straps and buckles to a square of cordura fabric. It's pretty basic and really just holds the sleeping pad in place while I thread a strap around the bars, the strap does most of the real holding.

You could also work out a way to strap a sleeping bag on to the seat with store bought stuff sack and some straps. I have seen this setup at the AZT 300 and a buddy of mine is planning on using the same set up, certainly qualifies a cheep. I tried to work something out this same way but decided it was a pain in the ass and went with Epic for the seat post bag.