First off, welcome to the club!
When I considered running electric versus the air lines to the pond, I was very fond of the pump being at the shop. I finally decided to run the electric to the pond instead, mainly, to avoid any condensation and freezing problems in the air lines. I don't think condensation/freezing is a real common problem, but I just wanted to avoid the risk all together. My lines would have to make a few rises and dips before getting to the pond and I felt like I was asking for problems. AND, it will be convenient to have the electric at the pond for something, I'm sure...Night lights, radio, power tools, phone charging, etc.
Check out Vertex for complete systems. They seem to be a popular choice. You can try to save some money by doing-it-yourself, but if you want all the niceties and quality that the complete kits offer...you'll likely spend as much unless you have free/cheap access to a lot of the individual parts. I decided the DIY route, but it was for the tinkering, not necessarily the minor savings.
I can't give much advise otherwise, as my aeration parts are patiently waiting for a trench to be dug.
