NOT CORRECT YET, NEED TO STUDY UP ON IT. WILL EDIT WHEN I KNOW FOR SURE!
Things needed:
Amulet Coin
Lv.100 Persian
PayDay (Move)
VS. Seeker
Leppa Berries (Not needed, but useful, I personally do not use them.)
Route 3
Route 24/25
Route 6
Route 11
Route 9
Route 10
Route 8
Route 16/17/18
Route 12
Route 13/14/15
Route 19/20
Route 20
Route 21
Kanto (All the above)
Note: From now on results may vary due to your Persian's attack stat and/or how many critical hits you get and/or the moves your opponents use.Treasure Beach
Kindle Road
Bond Bridge
Water Labyrinth
Resort Gorgeous
Memorial Pillar
Water Path
Ruin Valley
Green Path / Outcast Island
Trainer Tower
Canyon Entrance / Sevault Canyon
Trandby Ruins
Sevii Islands (Listed Above)