The 5200 will load into the 7000/7500. Note that the user area on RC5200 was 240x282 or something like that. The user area on the 7000 is 240x253 which includes a 52 pixel high system area at the top meaning that the 7000 screen does not have as much vertical height but config will still load.

You can also try it out by downloading PPENG software from this site. You can File->Import CCF... and import your config file and see how it would appear in the emulator.