Action Pinball offers a similar service. http://www.actionpinball.com/tools.htm#riveting_services
Unfortunately large, bulky, pricey ramps that are fragile and a pain to ship are often the most common items that need riveting.
It would be cool to have local rivet resources for pinsiders. If anyone in the DC area needs riveting, I have a couple rivet tools (Pinrestore press and Action Pinball hand rivet tool) I could offer up for use. I have a basic rivet assortment from Pinrestore, not as impressive as sixpakmopar