Liam B...Try asking a reputable shop to convert a righthanded 12 string which you have chosen for its playability and tone. It will require a new nut, the saddle slot filled and reversed, maybe a pickguard moved or added, and a general set-up.

I never cared much for most factory 12s and ended up having one built. It was a risk but I love the thing. A full and informed correspondence with a luthier is required if you do this though, because every detail is important.

Where are you? Someone here may be able to help you further.

Peace, Mooh.