If yours is a manual then I think it should be fine.
I don't think you really need to cap them off but up to you because nothing will be going thought the lines.
But this is what I think but don't see any other reason what I'm saying is wrong. Sorry only I don't wanna give wrong info, saying all that if I needed a radiator and a auto was available and mine was a manual I'd just buy it and install it.
Thats what ive done lol.
It was avail today for install tomorrow . goodish timing as i bought a cooler the other day as well so might as well do the lot.
Im sure ill find out pretty fast if i need to plug them up.