That's my Riddell Jango on Jez's site. Actually, that was my second Jango. The other one I had is now in Japan adorning someone's abode. I was going to make more, but interest has dropped off for Jango, and even Boba stuff lately. Even the once exorbitant Riddell Boba prices are now quite reasonable.
As far as how hard it is to take apart, it's not all that hard. The most difficult part is the visor. It's glued in. So be patient and pry gently, it will come out eventually. The earpiece holding the rangefinder stalk pry's off rather easily. The rest of the ear pieces can come off, but wouldn't suggest trying; decent masking will do the job.
Good luck and if you need any other hints LMK.
Shawn