Hi Grumpy, done some measuring and here goes,
1. float level height is 15.08mm, i measured it upside down, was unable to blow through fuel inlet so i hope i have done it right, i went to bring it down to the specified 13.2mm but it started to feel to tight so i stopped. I didnt push it to far as i knew it would of wrecked the needle.
2. the smallest drill peice i have is a 1mm, when measured with vernias it comes to 0.97mm. It fitted through, thats not right is it or is a little bit of difference allowed.
I wont try to run it and adjust the idle screw just yet , will wait for you answers to my findings so far.