Hello I have been thinking for a while what post machine to get and even thought about getting a Chinese clone from alibaba. But I'm to worrisome for that and now I think I am willing to spend 3k for a machine (a little more maybe). I mainly want to sew work boots in the vicinity of 7-8 oz leather and would like to make bison boots which are 8-9 oz. Roughly since I will be sewing two layers of leather I want something that can sew 16 or 18 oz leather. To my understanding the techsew 830 meets my needs, but I don't know if I should get a cylinder arm sewing machine instead because I am also interested in making wallets and other small things. I do not know if my interest in wallets is hungry enough, but the idea of being able to do other things with a cylinder also calls my attention. Then again I have heard that a post bed sewing machine with a roller foot is really nice to sew shoes, but I have never really heard whether or not a shoe can be made in a cylinder arm with a walking foot. Will it be too difficult? I seek advice on what you would do in my case. I have even been thinking of the cowboy cb4500 because of the ability to use the specialized foot to sew uppers to outsoles, but don't know if the machine will be too much machine to make shoes. Thank you for any opinions!