I have a CZ Scorpion Carbine and it appears as though I have one of the trigger packs with the welded screw.

I would like to either have a gunsmith drill it out or borrow someone's drill bit so I can drill it out myself.

I would prefer to have a gunsmith do it if they can do it on the cheap but it they charge any more than $20 for it I feel like I might as well give it a go myself because it shouldn't be more than 5 minutes.

Do itself, it takes 5 mins at most. No reputable gunsmith worth taking your gun to will touch a gun for under $25.

More like "an hour of shop time, minimum, which runs around $85 in the good shops.