Re: Strut top plates
Disclaimer* I don't know anything about it...but I'm going to assume it's a spacer lift that goes on the strut. If that's the case, IF you can just unbolt the strut, put the spacer on, and then bolt it back up, that wouldn't be bad at all. If you have to take the strut completely out and if it's going to be a PITA to get it back in, you might as well just do the full lift.
BUT, being only 1/2" like you mentioned...I would venture to guess that the strut SHOULD just slide back into place and bolt it back and be done with it. I say get it and post up here!