Hiplease feel free to let me know which Bosch bikes you have. And which you think are best for steep hills, lightest weight, no silly walkthrough frame and ideally under £1500 and can be delivered. MOh and cycle to work for £1000 and I pay rest. X. ideally that Scott or similar quality and price?
We stock AVE which have the Bosch system. We will also shortly be getting in KTM electric bikes. Our winter offer is currently 5% off the price of AVE bikes and this includes free delivery to UK mainlaind .
AVE electric bikes folding bikes
You can see more off the AVE range here
Products | EBCO Bikes
Regarding steep hills crank drives are definately the best, most Bosch models should meet your requirements regardless of brand (e.g. Scott, AVE etc). The lightweight bikes tend to have no mudguards or rear rack. Although most crank drives are between 20kg and 24kg even with mudguards and rear rack.
KTM information
E bike catalogue - KTM e-Bikes 2013
(UK RRP list is here: https://docs.google.com/file/d/0B35vfCMfgy1GOHl5Z1YwekpBN1U/edit?pli=1)