Thanks @Bpb so better to source a masterflex even if it's a used model? I'm looking at a used digital brushless masterflex and it's around 300 shipped so almost half the pump in question.I know about them. Not BETTER than a masterflex. Somewhere between kamoer and masterflex. They’re a commercial grade pump made for continuous duty.
For that kind of money, just get a masterflex. If you want cheaper, see if you can work with an old Kangaroo - they were the masterflex before masterflex was the masterflex... older, continuous duty and really reliable, but some of them needed board modifications. If you are handy, you can get a pump similar to a masterflex for a fraction of of the money.