Not a single company is going to recreate your unsupported setup to see what would happen and let you know unless there was a huge payment being made. Since the

Not a single company is going to recreate your unsupported setup to see what would happen and let you know unless there was a huge payment being made. Since the only reason OP is doing this is to save time, it would make no sense to spend weeks going around to each vendor trying to work out which one to pick. And often support people give wrong info, you may eventually find a vendor that just says "Sure you can do that" and then you get it and find out you cant.