I would advise against any modified v aluminium boat. If you want an aluminum boat I would get a deep v. They do not draw much water and they run much smoother.
That model G3 might be a rough ride in choppy water. I'd want a wider heavier boat with a deep v hull. Just my opinion though.
I will third that advise.
My cousin bought a 20' CC Lowe Mod V after I advised him of the rough ride and the fact that it will blow around a lot when anchored. I fished with him a few times and at 18-22 mph in some chop, I thought my spine was coming out the top of my skull. when we fish, he always wants to take his rig. His motor was down, and he came to Twok with me and my glass boat with a deep V entry. The wind got up to 24 that afternoon and he was blown away by the fact we could still run 30+ with a nice ride and stay dry. He hates his boat now.
I would seriously look at a used glass boat with a decent V hull rather than a new aluminum mod v if it were all about the budget. If your a calm weather only fisherman, anything will suffice.