overdrive to ap

I want to make a [overdrive->ap] weapon.
I know I need door to tomorrowx10, but I also need a weapon which can be added the ability. any idea where can I get one like that?
right now I'm in the calm lands moving to mount gagazet.

Go to the Oaka's (nephew's) shop in Macalania forest. He sells weapons and armor with four empty slots, which are great to customize.

but I can't add all abilities to all weapons, right?
so I need one that can be added drive to ap.

So long as there is an open slot, any ability can be added to any weapon.

doh, didn't know that, thanks.
btw, is there a place where I can make gil fast (gotta bribe some doors to tomorrow).
another thing, after beating seymour flux in mount gagazet and the sanctuary keeper, can I go back to any other area before thunder plains? (because I couldn't last time I checked).
This would allow me to complete 6 area creations and thus getting 99 doors to tomorrow.

yes u can go anywhere at the end of the game.( unless your playing the pal version, then certain bossess infest some areas) theortically u can walk all the way back to luca if u want from gagazet. i would wait till till later before u do all this stuff though.

the best place is mimics in OMEGA RUINS. some battles in there have treasure chests and if u open them sometimes a mimic monster will come out. they give 100,000 gil at a time i think, more with gillionaire.

beware though cause its the hardest dungeon in the game and the mimics are not easy.

Mimics give you 50,000. 100,000 with gillionaire.
By the way, there is a boss in the Omega ruins and you can STEAL doors to tomorrow from. You either get 20 or 10 of them each time you steal. And if you can bribe it. You won't regret it. If you bribe it you get 90 or so pendulums which will let you put the master thief ability (always steal rare items) on an armor. Its the only place you can get that many that cheap. Don't pass it up. FYI you need 1,400,000 gil to bribe the boss, so save up.

Interesting note: if you have sensor and you target the boss, it will say "Give it all you got!" along the top meaning give it all the gil you got. Funny isn't it?

bah, right now I still can't return to any area before thunder plains, so I can't complete 6 area creations. :(

dont worry, continue forward and before long u can go anywhere.

You do have 6.
1. Zanarkand road
2. Mt. Gagazet
3. Cavern of the stolen fayth
4. Calm lands
5. Macalania
6. Thunder plains

but does the zanarkand road considered an area? I don't think so.

EDIT: Do not double post or post in your topic just to bump it. Your question will be answered with time. Have patience. -Murder

Yeah its not a seperate area. Sorry, I forgot. Just checked, I thougt it was though.