... Awww, that means i'm gonna be stuck running around a stock kanto & hoenn all over again and again? xD ... ugh! :p ... :)
i don't think altering the stock map is all that important tbh, as long as the trainer sprites aren't exactly the same as the stock, that should be enough of a change from the original. You don't wanna get carried away on mapping when you have the whole asm thing over your head..... speaking of which (will find the exact username), but Jambo (i think) helped out hacksrepairman tremendously when i was working with him on advanced adventure. idk how active jambo is, but he might be able to help you out with both... especially if you can't find what you're looking for in rom hacking help.