many 05 teams will start carrying two goalies or at least carry an alternate. might be your foot in the door. as a general rule I think March is a bit late to start thinking about this. I know teams have been inviting players to practices to get an extended look. So I would get on the phone/email asap.
Young goalies are funny as you really want them on a team where they'll face lots of shots. At this age most teams carry two and they split time so you may want him to also play in town to see tons of shots. If eagles are close to you I'd try there but also hit all the other local teams as well (jr. Bruins, boch, wizards, assabet, ice, vipers, etc). Unfortunately to get onto a team as an 04 he's going to have to go to a lot of tryouts. Good luck!!