>Most have custom makers of golf clubs and they use a chop saw to cut the shafts. talk to them.
You really need a special saw setup to cut frames or else the corners will look like a high school kid's science fair project. That's probably not the look you are going for. Other places might be able to cut metal, but they wouldn't have the correct setup to cut metal frames. I can assure you of this. My father has a frame shop in his basement and I frame all my own work.
try "presto" www.framingsupplies.com or 1800-334-9060. there are tons of other places out there.