Well they make the regular clad mint sets, I think that is what you are talking about.
They also make a proof version in both clad and silver so maybe one of those.
Do a search on
ebay for either mint sets or proof sets and you will find plenty of options depending on what you are looking for.
When you search on
ebay if you look in the upper right corner somewhere there is a checkbox to click advanced search. Click that.
Then click the sold listings.
Bingo, now you have all the actual sale prices for that search so you will know the best price for
ebay anyway.
Good luck and I hope the grandkids love them.