Roy
I can’t help you indepth but I can tell you that the drawings I worked to had the brake hanger pivots in the wrong position – LBSC casually refers to it in the very last instalment in ME when it was serialised. Some one approached me at a Forncett day several years ago and asked if I was aware of the mistakes in the valve gear. I contacted Reeves – this was when John Crisp ran it so quite a while back and he found an errata sheet that had been published at some stage in ME. I would suggest you track this down. I never went beyond a chassis – I parted with it to fund my workshop extension.
I can’t remember much about the build but it’s a popular design so I’m sure some one will be able to help
Hope this helps a little
Regards – Ramon