well, got the engine started today....had a quick 5 mile run....going well although timing is a bit off as it is backfiring occasionally (and would you believe it - my timing light packed up in the middle of using it).
The new engine feels very strong, and finally got the tickover down to 850 !! only taken a year to sort that out !!
Also had to put a 6mm spacer on the front wheels because, on full lock the inner rim fouled the bottom coilover mounting !! thank goodness a simple solution - I guess when I finally get some minilite wheels I will have to watch the offset carefully so I can remove the spacers