Looking for a small tank just to top off my FX wildcat MK3

Guys I am looking for a cheaper tank that I can use to top off my Wildcat in the field maybe one or two times. Someone posted some smaller type tanks they found on ebay that would work but now I cant find the post. I have a Yong Heng compressor that I would use to fill it. I would preferably like to find one that already had the right gages and hoses. Can you guys suggest something. Thanks for the help! 
 
The Wildcat being a FX and bottlesize 480cc with a fill pressure of 250bar~3625psi max?

Then you need minimum a 300bar~4500psi 2liter~21cft tank to get at least one complete fill!

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The Wildcat being a FX and bottlesize 480cc with a fill pressure of 250bar~3625psi max?

Then you need minimum a 300bar~4500psi 2liter~21cft tank to get at least one complete fill!

The Wildcat is not a bottle gun and the recommended max fill is 220 bar.

From the FX site, the Wildcat compact tube is 230cc, and the long tube version is 300cc.
 
The Wildcat being a FX and bottlesize 480cc with a fill pressure of 250bar~3625psi max?

Then you need minimum a 300bar~4500psi 2liter~21cft tank to get at least one complete fill!

The Wildcat is not a bottle gun and the recommended max fill is 220 bar.

From the FX site, the Wildcat compact tube is 230cc, and the long tube version is 300cc.

You are correct about the Wildcat compact - The aluminum bottle you recommend should give me at least one or two top off from 100bar back to 220 bar right?
 
The Wildcat being a FX and bottlesize 480cc with a fill pressure of 250bar~3625psi max?

Then you need minimum a 300bar~4500psi 2liter~21cft tank to get at least one complete fill!

The Wildcat is not a bottle gun and the recommended max fill is 220 bar.

From the FX site, the Wildcat compact tube is 230cc, and the long tube version is 300cc.

You are correct about the Wildcat compact - The aluminum bottle you recommend should give me at least one or two top off from 100bar back to 220 bar right?

The 4500psi 0.45L aluminum bottle should give you one refill from 100 to 208 bar, and a second from 100 to 154 bar.