Yeah bumper has been added to my long list of things that need doing which rad did you end up using? Mines in pretty bad shape after all the moving around and being pushed up against things etc, and it wasn't too great to start with. I may also get some new fans eventually as well and tidy the whole thing up a bit, but I deffinatly have more pressing issues to deal with first!
Seeing threads like this has really got me contemplating having one of these engines in my valver at some point.