Newbie Questions

I have a Airforce Talon SS that I purchased from Pyramid Air back in 2013. It did come with an air tank also.

http://www.pyramydair.com/s/m/AirForce_Talon_SS_CO2_20_oz_CO2_Tank_Scoped/1671/3295

I decided to give the air tank a try instead of using CO2.

I purchased this to use to fill up the air rifle tank with a scuba tank.

http://www.pyramydair.com/s/a/AirForce_Scuba_Refill_Clamp_with_Gauge/2774

I took the tank to a dive shop and they filled it up. I was impressed with the better performance so I am going to buy a scuba tank. I also would like to have a air rifle tank with a pressure gauge. I was going to get one of these.

http://talontunes.com/shop/talon-tunes-tank-adapter/

Or I can just get a spin-loc tank from Pyramid Air.

I think I need this to fill the spin-loc tank using my current equipment.

http://www.pyramydair.com/s/a/Airforce_Braided_Steel_Hose_Quick_Disconnect_Fits_Older_Airforce_Refill_Clamp_Hand_Pump/3840

Is there anything special I need to do to hook up either the talons tune or the spin lock tank? From what I can tell, all need is the wrench for the collar or am I missing something? Does anyone know where I can purchase the wrench to tighten the collar?

Here is a picture of my Talon with the air tank removed. I believe it is spin-loc compatible.

https://drive.google.com/folderview?id=0B7yFWdwA7P0lcDdTenRYVFdxSWc&usp=sharing

Sorry for all of the questions but I am a little confused with some of the stuff I seen on YouTube.

Thanks