I have an NTSC SNES Mini for sale, system only.
The cart slot has been crudely modified to fit European/Japanese cartridges. The cart slot is a little loose, but it works fine as long as you don't nudge the cartridge too much when playing some games. Carts that use the extra pins work (I've tested out my Super GameBoy).
Will ship from BC, Canada, postal code V7K 2X5.
Edit: I was going to sell it to someone, but he changed his mind. Still up for sale.