WTD: Geoff (Style) bars, bikepacking kit

After a few bits for a new bike. Will need them posting so if you have a few bits, great. Cheap is good but happy to pay for decent kit too.

1. On one Geoff type bars, (ie cheap Jones loop).
   
2. Largeish handlebar harness thing - with or without drybag.
   
3. Inflateable sleeping mat, forclaz etc. - 700g or lower plz.
   
4. Stem cell type bag (this is a bit of a luxury rather than essential).