Thanks very much for the info.
I now have a brand new RB12 pull start fitted, but I haven't had time to even start it yet. I had to do a little alteration to the chassis so as I could still use the starter box, and have about 2 hours all is good.
I'll get around to starting it tommorow sometime hopefully and slowly run it in. Can't wait
I thought about going to the bump start RB V12 but that meant I would also need to replace the exhaust and that was going to be another 100 and something dollars which I didn't want to spend, nor have.
Thanks again!