The size isn't the issue, it's more that a lot of squares need to be duplicated. But, yes, if you'd rather do it yourself, then that's fine. :) I'll get to work.
I saw your thread on PHO and it looks good! However, I normally ask for a few DA points for ROM maps, as they require a lot of work to get them within the tile limit. It's also useful to know which ROM you're using. Check my DA page for more details (it's linked in my signature).