I saw some 2.0″ imex disc wheels on ebay a while ago. the plain disc design was far from yoke Hotlaps aero wheels. but the structure itself looked pretty much same to me. it was 3 years ago
http://www.rc10talk.com/viewtopic.php?f=29&t=12708

then a close friend found me some imex wheels recently. so, i could build more 834B wheels from Hotlaps 2WD front wheels plus imex wheels today. it worked!

thank you so much Aaron!

and the leftovers..
center discs from imex and 2.2″ 2WD front outer rims from Hotlaps

and few more pics from my old posts