Up at the Heritage River Festival I ran into my friend Peter Cox, who builds wonderfully playable and inexpensive folk instruments. I played his version of the MacArthur harp (I believe he's a friend of Margaret) and it's quite lovely. I didn't get the price exactly but I think it's in the 120 dollar (American) range, which is an absolute deal! They're plain with no carving and sound beautiful. Easy to learn as well.
Peter lives back in the hills near Barrie Ontario, and is one of the least commercial folk I know. You could call him (I know he sends instruments all over the place) at 705-726-3784. I told him about Mudcat, so mention my name, and if he gets computerized, he'd make a wonderful addition. He does great (very) old time banjos and dulcimers as well.