I am a student in the marching band and this year I got the position of administrative assistant. While I was doing inventory of and play testing school tenors, I came across a vintage Conn 10M with no dings and about 90% original lacquer. It was the only one that wasn't in need of repairs, but the case it is in is nearly shattered. It's a great horn and the band director understands. He has tasked me with finding a case. It will be a school horn, so I want to get a hard case as opposed to a ProTec or a gig bag. What would be a good case at a good price that would fit it snugly?