I have a pair of Champion frames you can have/try/give to charity/give to worthy junior shooter. If I give them to you, you must pass them on for the same price (sod all!) when you have done with them.
The frames have two rifle shooter lens holders and a single eye shade.
Also included is a Knobloc pistol shooter lens holder and iris modified to work with the Champion frames (I had previously upgraded from Knobloc)
Give me a call when you get into the UK and we can sort you getting them to you.
Hope you are enjoying the land of the rising Yen.