I'm working on that. I've just emailed Peardian (who ripped the maps for Wario Land 4 on VG Maps) about hosting his maps on the new site. I'll see what happens.
Okay, it's official. Peardian has given me permission to rehost his Wario related maps. All I need is to credit him for them and link to the VG Maps page for each game in each section, which will be no problem at all (especially given how much I love VG Maps as a website).