El Paso County: Sheriff Anderson would sign for anything but a suppressor, although I found the process taking longer and longer (over a month to get my last F4 signed and back in my hands). Those who want suppressors have to go corporate, get a SOT, or find a vacation home in a friendlier county. I was never charged for a background check, fingerprints or any other aspect of signing off on NFA.
Terry Maketa (current undersheriff) takes office Jan 7, and will continue the CCW program unchanged - but I'm not sure how he'll be on F1 and F4. One can hope he'll streamline the process and sign for anything.
Current El Paso CCW is that you must be 25 years old, with proof of firearms safety training.
$20/yr, and an initial application fee and CBI background check fee if it's a new permit and not a renewal. I just renewed for 4 years for $80, but don't know what the application and background check fees will be, but I think it was around $50 appliation fee and $15 CBI, or maybe $40 and $25, respectively. My first permit was for one year, and cost $85 to get issued.