From the looks of the picture , and not a exact price I would be at about 100.00 just for the welding with someone else doing the clean-up or machining .
About a 2 week turnaround , I am in Anne Arundel County .
I should add as long as it it legal for me to have your slide in my possession for 2 weeks , i am not a FFL holder so whatever is legal is what we do .
If you do the job, please post up some before and after pics. That work you did for the guy with the woodworking tool, don't remember what the tool was actually called, was incredible!!