Combination tile/sheet metal roof

We are replacing our roof as part of a larger renovation and have a dilemma I haven't been able to resolve yet.

30% of the roof has a shallow 10 degree slope and traditional tiles do not work. The only option I am aware of is to use 'Nulok' (beautiful but expensive) or sheet metal (butt ugly and try to avoid). The rest of the roof has a normal slope and roof tiles will work fine.

I am considering using Nulok for the shallow slope and normal tiles for the rest, but I am concerned about using two different styles for the same roof.

Has anyone better ideas or managed to blend different roof tiles so that it still looks great?

Thanks, regards
Chris