Ok...gonna get the taprite dual body 3 gauge. Where are some good places to find this on the cheaper side.
Keg Connection would be my choice...
Get the swivel nuts and everything the lines (both beer and gas) connect to with the mfl/threaded connections (QD's for one). I would also go with Oetiker clamps over the worm clamps in a nanosecond. You should get the regulator with mfl connections on the feeds (Keg Connection can change the shutoff valves on it for you, IF you ask them).
3/16" beer hose (ID) on 1/4" barbed swivel nuts. I use the red 5/16" ID red gas hose form Keg Connection.
I would also get the bulkheads to pass the gas feeds into the fridge from the outside. FAR easier (IMO/IME) to tweak the pressure with a dual body regulator on the outside of the fridge.
Picnic taps are ok to start, but you quickly learn their limits. Especially when you compare them with Perlick faucets (525 and 575 models). I had the picnic taps initially, but changed over to proper Perlick faucets pretty quickly. With three taps through the door of the fridge, it's nice. Especially since I select whichever brew I want at that moment, and don't need to open up the fridge to pour a glass/pint.
I would also highly recommend getting an aluminum CO2 tank over a steel one. Especially if you're going to get something over 5#. The steel tanks weigh about twice what the aluminum tanks weigh. I would also look to see if there's a place close to you that will refill the CO2 tank at a decent rate. Check for places that recharge fire extinguishers. That's where I go.
I would also make sure that the regulator is 100% Taprite. Not just a Taprite body, but the gauges and all. IMO/IME, it really does make a difference. Getting everything from a solid vendor is also very important. Keg Connection has a solid track record with me. Not to say things don't go weird from time to time, but they take care of it (making it right) without a fight. To me, that's huge. Well worth the few dollars you MIGHT save by going someplace cheaper.