if i get aftemarket case saver will i be able to take plate off that comes stock? and also what one do you think is best to get

yes you can run an aftermarket case saver with out having to use the cover plate, usually when you buy an aftermarket case saver they will come with new mounting bolts.

I am running kind of 2 case savers, both are from Mod Quad one is the inner one (that you can't see)
& the other is this trick looking flame cover which acts also as a case saver.
each are sold separately.

With the Moose one, you can