Alright running into more issues with this. Using Dale's mod as a road map I've come across a bunch of stuff. The plating of luxury resources, strategic resources, bonus resources and fish are completely different (yes, fish has it's own category of placement, weird). There is no place that I have found where you can simply tell the game to place a number of resources instead of just the resource. You would almost have to remove all references to the old resource from the LUA and recode it. This is horribly inefficient and unnecessarily cumbersome. Second the way it is handled makes all resource based mods unnmodular. This has to do with the fact that each mod would need it's own version of the AssignStartingPlots.LUA file that would be exclusive to the mod. Unlike XML modding where you update the database resources, because of the way they are handled, do not update and instead need specific LUA coding to get them to work.
Adding and removing resources was infinitely easier in CIV4 then it is now in CIV5, The first definitive step backwards in modding capability that I've seen in this iteration.
I'm sure there has to be a better way to do this then hard coding the LUA every time you add a resource. The frustration level for me has hit a critical mass, so I'm done for the night, perhaps tomorrow will shed light on how to do this easier.