Wanted: WTB: Remington 1100 Magnum Barrels

I've got a vintage-ish Remington 1100 Magnum that I want  more barrels for. 

What I'm looking to get my hands on:
-A 18" to 22" slug barrel, preferably rifled.
-A 22" to 24" barrel with replaceable chokes.
-A 30" barrel with replaceable chokes.

Barrels must be for a 3" chamber. I am NOT interested in 2-3/4" barrels.

I am happy to pay for shipping.

Please send info with pictures, thanks!