Seem to me that building for hire is a difficult thing to do and make any money at, unless your into a nitch market like CrateCruncher seems to be. I used to do a lot of building for a good friend (that has gone to that great R/C field in the sky). It was a great arraingement as he demanded the very best and asked for planes from trainers to scale twins, just what ever struck him at the time. Some times he would stop me in the middle of a project and want a different plane built first! He just did not have the time or the tallent to build what he wanted. ARF's and kit mills were out of the question.
JEB