I understand your wants BUT, the suggestion to do it in parts does make sense, at least until you can master the process. The guy in China NOT ONLY has a professional machine, but also experience, that comes from a lot of printing. To me, the current situation seems to be costing you a lot of money in failed prints and NO gain in the learning process! Given it seems you would like to make some money out of this, or at least break even, it would appear to me that the best way forward for you is to split it into parts and start to make some monies to at least help pay your way for the models you want. That way you get the experience (and I would not be surprised at some failures even them) while not on a complete loss making learning curve. As for being inept with superglue....we are all inept at times but again with experience using it we master it. In my sixties I am still learning about mastering it!
You will get there, and I for one, look forward to your success! Khris