Opinions on a restoration

To be honest - even completed neither will get back what it costs to actually get done so cost is moot. If it were me, and I've done all that, I'd do the V8 car. Roof and trunk/extensions are not hard at all and even a novice can learn on them. Rails are much more involved. Clipping I wouldn't even bother with unless you have a chassis jig or frame table to put it on and work around.