I've come into a 5x7 Agfa. The bellows are shot but the wood and all metal parts are in fine shape. I already have a good 5x7 so I'm thing of restoring the bottom and front and making a 7x17 upper back section. Has anyone converted an old Agfa? Problems? The track is 16.5 inches with a real draw of 14.5 and 13" bellows. Two questions for you 7x17 shooters. I can squeeze a max of a 14" lens out of it. I'm thinking of only using one lens a 12". What is your typical standard lens. Where do I go for the cheapest bellows 7x17x13"?