I'd like to try using the "Mythic GM Emulator" to help create a solo adventure campaign. The overall concept will be of a party of low level adventurers escorting a young centaur to his home hundreds of miles to the southeast.
I will be using some of the old Judges Guild maps (Valon, Valley of the Ancients and Tarantis) because I've always liked them and never had the chance to adventure using them. They are available in .pdf format from DriveThruRPG and RPGNow for about $2 a map.
Both of the above locations also carry the "Mythic GM Emulator" in .pdf format, which I will use to conduct the adventure.
As for the gaming rules, I will be using a modified "Dungeons & Dragons" . . . but the old red book / blue book version, not the current version of AD&D which is (in my opinion) way over-detailed.