Check out www.gunbroker .com. There are usually lots of pages of parts up for bid.
A Grade 5 Crass would be a very rare shotgun. Value could hit $3000 in top condition. Best get a hands-on appraisal by someone knowledgable in the older Ithacas. sales@countrygunsmith.net
listen to the teacher, study at least 10 to 20 min the day before a quiz or test then u will be fine ;]
Try ebay. I just bought a new stock for $60.I believe they had a couple trigger guards. Steve.
You may grow a bit more, but this is highly unlikely. You will probably remain the same height.