i would try it, everything that can get you a block in less than a month it's worth trying
I personally wouldn't mine solo with such long expected gaps between finding blocks, I would be too paranoid that I had a setting wrong, or something wasn't working etc.
Maybe mine in a pool for a while, then when you are happy enough that everything is working perfectly, switch to solo mining, but I wouldn't be able to do it, but then I am not the luckiest person in the world, so would expect to take over a month before getting a block.