If they pressure test they should be ok. Also CC the chambers. One on each head. I don't remember the Batten W2 having that chamber. Some one may have milled the crap out of them. It makes the decks thin and if the CR gets high enough it may be tough to keep head gaskets sealed.
One other thing. This I learned the hear way and only mention this so others don't do the same.
Look at the fuel pattern in that chamber. I hate that combustion chamber. It's a royal PITA. I can also see where all the material has been remove around the guide. This makes the chamber issue way worse. I also expect that that head has a 2.08 valve, and the bowls will be at least 92% of the valve diameter. In that case, I would use a good 50 degree valve job on both the intake and exhaust and don't make the port any bigger than it is. It's too big as it is now.
Just my random thoughts from looking at your pictures. I wouldn't let the chamber issues and porting sway you much, unless the decks are real thin.