If you like the windows down, keep the vents. If you like A/C go with single side.

 

Wish my 53 did not have vent windows. The cowl vent provides all the outside I need when too cool for ac. Like CharlieLed I removed them from my 40 and it is much quieter with the air on than my previous 40 was with the vent windows.

 

I do plan on having vintage Air or something along those lines when the budget allows, right now I've been looking at the wiring for about 2 weeks and not getting much else done, it seems overwhelming to me, wish I could just pay someone to do it, I have all the wires run the way I want them, but the actual wiring just plain baffles me. One of them thing I guess you have to jump in with both feet and just do it.
Don

 

Don't look at the wiring as a whole but as one section at a time, it goes much easier that way. I used an Ezwire kit and Sean in the tech department was great, not sure what you are using but the tech guys are there to help.