The equipment list is a bit confusing. You wont need a heater if you are going to have FW shrimp in there; then if you have shrimp in there, minnnows are probably the only other fish you can put in with them that will survive a cold winter. Them and FW mussels which are awesome.
So if you decide you want a cold water tank with glosso, you could sell the heater and raise some money for other stuff you may need, like a nice set of lights that looks visually appealing. if you have a filter running I do not foresee the need for an airpump either, and having an airpump running is counter productive to adding CO2 in the tank. As long as your stocking levels are alright, you should be fine.
Personally I would use nice lights on a tank, and not the normal CFL's - just personal preference; plants grow better, faster and it looks good. If it were my only tank, I'd want it to look like a pro tank not with stuff from the warehouse hanging on top of it. You could even DIY your own light hood and use tubes - lots of threads on here that show how to do it with T5's and T8's.
Maybe you could buy one of those nice looking lamp shades from bunnings or something like that, and somehow rig it in a way that you like. I have seen a number of very neat looking metallic units that look very nice; all you need to do is like it and change the bulbs.
HTH