The exhaust on the integral head has two outlets doesn't it? That will be the only difference.
The early heads are all the same so look for any 230,250,292. The real early 194's have a smaller combustion chamber and will bump the compression up to approx. 9 to 1. They are hard to come by but worth a look if you are in a older yard. The 292's use bigger exhaust manifold outlets, 2.5" instead of 2.25", and can be identified by the three bolt outlet. The smaller outlet only uses two bolts.
There is no difference in the main head, so really the first one that looks good should be fine.
You can always have bigger valves put in when getting a valve job, small block Chevy valves go right in and are pretty cheap to buy.