Get in touch, Todd, and I have all the gear you need to learn to do this yourself while you work out of my basement.
I have lots of dry mount tissue willing to sell by piece at cost for the size you contemplate.
I have some mount board in the house presently; it might be worth it to bring your own, and we can cut it down to suit.
You don't mention if you wan to matte the print as well.
Elevator does most excellent work; I am just chiming in if you want to learn how to do this yourself.
PM me to let me know your schedule; I am aware that we are heading into a busy season, and Mississauga and Orangeville are not exactly next door to one another.