Tom,
I am new to this site and just came across this pattern of yours. I thought it would make an ideal first bag attempt for a bag. One thing; you state that you were considering making it out of 6-8oz veg tan. This seems to me like it would be hard to sew on the gussets; particularly the smaller one. I thought about using the 6-8oz for the front and back and 3-4oz for the gussets. Do you think this would be okay?