Kwalley, keep in mind that price and value are not interchangeable. Price is when a willing and able buyer and seller agree on a value. Your price is certainly well within a range of reasonable values. If you had paid $300 you would have a bargain. $1000 and you would need more "schoolin'".
Note that "hand made" and "rare" are not necessarily hallmarks of a fine or expensive gun. The Belgians did a lot of "handmade" because the couldn't afford the machines and desperately needed the jobs. There are a considerable variety of "rare, handmade" Belgian guns simply because they failed the test of time. These guns have been refered to as a class as JABC (just another Belgian clunker). Your gun does not at all fall into this category.
I do hope you enjoy it.
DDA