Thingiverse and places I can get info from.
For the roller am currently going to use this http://www.thingiverse.com/thing:215438
Wheels bought from home depot from shower rollers for now.
For the printer parts are this http://www.thingiverse.com/thing:287103
For build guide is this http://blomker.com/Kossel_Mini_Assembly_Guide_V1.0.pdf
For the arms I did not bought this http://www.amazon.com/3D-Printer-Rod...0_SR218%2C320_ but you can save time and get this whole kit. Instead of buying separately like i did. But I still listed what i bought below.
Parts i bought from amazon:
http://www.amazon.com/gp/product/B00...ilpage_o07_s00
http://www.amazon.com/gp/product/B00...ilpage_o04_s00
http://www.amazon.com/gp/product/B00...ilpage_o07_s00
http://www.amazon.com/gp/product/B00...ilpage_o07_s00
http://www.amazon.com/gp/product/B00...ilpage_o08_s01
http://www.amazon.com/gp/product/B00...ilpage_o02_s01
http://www.amazon.com/gp/product/B00...ilpage_o02_s00
Off Amazon
https://www.b3innovations.com/?product=ptc-fittings
https://www.b3innovations.com/?product=bowden-kit
http://store.quintessentialuniversal...?id_product=18
http://www.ultibots.com/gt2-timing-b...s-2mr-1164-06/ x3
http://www.ultibots.com/kysan-nema-17-stepper-motor/ x4
http://www.thingiverse.com/thing:35404
http://www.ebay.com/itm/1-4-100-FT-B...item234f5617e4
Airtripper's Bowden extruder METAL PACK, Reprap Rostock DIY 3d Printers from ebay kit. You can outsource it
Can't remember but one of the two bearing below goes in the Airtripper and the other for the kossel mini belt to ride on.
http://www.ebay.com/itm/10PCS-Miniature-Sealed-Ball-Bearing-Groove-Model-Metal-Shielded-Metric-Radial-/161437653630?var=&hash=item0 < Can't remember what size i bought look for installation. Found installation:
http://airtripper.com/1071/airtrippe...pdated-design/
http://www.ebay.com/itm/10pcs-625-ZZ...item5ae3a68dd0
other stuff you would need are not listed.
Like the pulley for the belts. And electronic I bought from china. End stops. For hot end I have the hexagon from my makerfarm. If not ill probably would go with e3d v6 small not sure about that yet.
Electronics were you think you are getting the best.
Some of this from amazon are not currently available but they were when i bought them. Pay attention to the beams they go on sale sometime. Is the cheapest i found. And they look great.