Don't forget about the 93rd Sutherland Highlanders. They were in the Americas later during the War of 1812 and participated in the Battle of New Orleans. They didn't actually wear kilts, they wore trousers with that tartan on it.
Also, the 7/60th Royal American should be under light infantry, as they were issued muskets, not rifles. The riflemen, if you choose to use them should be the 95th Rifles, since that seems to be the only actual British rifle regiment in the war, unless you want to use a Canadian regiment, if they even had one with rifles.
Good luck.