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> Thanks for that John. The SInarbron website didn't have the back for sale but I'll contact the sales reps from your link. I'll also follow up on the other links you gave me and let you know if I have any success. The problem is that seemingly Sinar are guaranteeing that anyone who has invested in the 22 can upgrade to the 75 with only the difference in price between the two to pay. So it may not be financially viable for anyone making the upgrade to do it by selling to me...but i'll try. Mind you, maybe the upgrade offer applies only to those who purchase the 22 after the offer was publicised? >