Hi Paul and Stuart
I agree kits are more satisfying, especially when they cover a prototype not available any other way, but sometimes RTR conversions help fill the layout and are a useful short cut.
I received an email from Rapido saying they were looking for comments on a model of the E1 they are looking to produce, so you may wish to take a look at their website. My only concern about Rapido, from converting their J70 last year, was that it employed stub axles, so conversion to EM (unless I wanted to scratch build a chassis) relied upon the very old method of pushing the wheels out on the axles as far as they would go. Not ideal, but I think I got away with it!