Will someone install a Huma reg??

So Huma makes a regulator for my rifle and I just have to have it. Just wondering a reputable person could install it for me as I'm not sure I trust myself lol. I know I should probly try to tinker myself 1st but I would rather someone just install it that knows what they are doing. I asked Mike already over at flying dragon air rifles that makes these guns and he said hes never installed one so I should probably find someone who has. Now the eye thing I need to know is how much you would charge to do so? Feel free to PM me with some Information, thanks you guys!

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I installed a huma in my bull boss. Empty the air tube, if it screws to the air valve (not familiar with the Xesco) remove the O ring. With a small triangle file, file a very small v up the threads from where the air tube starts to thread on to where it seats.mark where the v is on the outside of the valve. Screw on the air cylinder and mark it at your mark. Remove it and file a v in the tube at mark, vary small. That way if you remove the regulator the O ring Will seal the air cylinder as stock the way it is now. Hope this helps you . Dave