You might want to check with Baltimore Bowmen. It's a club north of Baltimore that is mostly trad shooters. They put on a big-time trad 3d rendezvous every May, usually the weekend after Mother's Day. There are tons of vendors and most everyone there is likely to let you or your boys try things out. If anyone in the area will know how to guide you, it'll be that club.
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Yep the BB trad classic in May will have hundreds of bows available to put your hands on and look at. Also ebay has lots and lots of trad bows, of course buyer beware try to look for something with a return policy.