Just order the model you want and get it mailed to you. That's all the "local" place does, and beware many of them just pretend to have local stocks but all they do is order from China and get it sent from China direct to you, so you may as well just buy it from China yourself and save $100.
Re the memory depth I think most brands only use the small memory for the bulk of sampling purposes, as it is fast. The large storage memory only works at real low sample rates. If you read some reviews they usually discuss that issue.
My view is that you should choose one with a big screen, like a 800x480 7 inch screen. Some of the 5" screen models are still running 320x240 pixel screens which is nowhere close.
(off topic) I had a little chuckle at your "reason for editing".