I don't think it would be disastrous by any means if the rags get RVP, theres no guarantee he will reproduce the form he showed this season for them, he is injury prone, and with pretty much no sell-on value and a high wage demand, it won't exactly ease their debts.
As long as we strengthen our squad, ie. cover for centre back and midfield, we will be fine. Our strikers are good enough and I'm not sure RVP would offer much more to our team than Dzeko does already.
Don't get me wrong, I'd be happy if we do get him, but i just think it's a bit of a gamble when we could go for someone like Cavani who tore us apart in Europe last season. I'd much rather we just go for him to be perfectly honest, get rid of Tevez then focus on strengthening areas of the squad that actually require it.