Benton,
That looks pretty cool! I found an air gun shop close to me today. Air-Venture Airguns in Bellflower Ca. It a little shop but it looks like they have all the right stuff.
Just finished installing metal breaches and rear sights on our 1377. Its nice to have dove tail mount for the little Daisy red dot instead of those loosie goosie barrel clamps. Took four shot with each shoots little low with out any adjustments. That Vase looks like a great target to chip a way at. LOL