Anyone building or having built 1/8th Rider-Erickson Myers kit?

[bobs7-62steamair]

Would like to talk to anyone that has built or is building the Rider-Erickson 1/8th scale hot air engine kit by Myers models. Have some detailed dimension issues I would like to discuss.
Bob

 

[fcheslop]

Is that the one with a 2inch bore
Iv been reworking some very badly machined casting probably sold in the UK by Camden
BobsModels did a very good write up on one
http://www.modelenginemaker.com/index.php?topic=3441.msg90731;topicseen#new
There a few errors on the drawing Im using in the the Steam and Stirling engines book 1 or 2 cannot remember
Iv rended to make each part fit the next and done away with all the oversized holes as it must have sounded like a bag of hammers