Schwin,

Honestly what I would do (if I had the skills to build a respectable large format camera-and I do not!) is purchase a holder from S and S and build my camera back around that...

The holders, to do correctly IMHO are so much more difficult than the camera itself....there must be 100 or 200 seperate operations to make one, then you split some, chip some etc....

I feel a well made film holder is definately worth the investment.....film is expensive the set up and the shoot justifies the expense and the elimination of a very important variable....there are many threads bemoaning the fact of soft negs etc. only to find the holder is not correct....

Just a thought.,,

Dave in Vegas