301 sounds like a great idea, but as some of the guys here who use this method all the time will likely tell you - they seem to have a tolerance level to inbound links - above which they either fail, or don't pass on the juice you would expect.
So in a low comp niche this might be a decent idea if you accept the limitations.
Otherwise the WEB2 seems better( Mix it up - not just web2 though - high authority content sites of all kinds)
Scritty