One amp per side, or same amp?

Blending diferrent sounds is part of the idea, but what I really want is the fuller effect of quadtracking. It won't work well for that? would I have to record all 4 tracks? or can delaying the dulpicated Di track do the effect a bit more convincing? quadtracking would be really painful for the guitarrist who's doing it (he's good and tight, but it's only one guy), but if it's the only way to go I'm gonna have to push him to do it. Things is it's my own project and he ain't charging me for recording those guitars so I can't really force him to if he doesn't want to

You are going to have more blending than guitar quad.

I did it on my band's last album and resulted great on blending