10" drum source?

I have to get new rear drums on my '72 Dart. It has the original drums on it and they kind of grab if you stomp on them hard. I was thinking maybe it was the front to rear proportioning valve (I assume it has one) but the mechanic says it's not. I am in a country where people don't generally work on their own cars for a numbers of reasons, despite being a handy people -- there are no places to just buy parts for an old car, no car parts chains. On a trip to the US I planned to get the drums and bring them to the Middle East for the mechanic to install as he told me I definitely need new drums. It's also illegal to turn drums and discs here so that's not an option. I found that AutoZone doesn't have them, and either do Advance, O'Reilly, or NAPA. Advance said they could order them, and so I prepaid as required, and then 3 weeks later I inquired with them about where they were (since they said within 3 days they'd arrive) and they said jeez man sorry but we have never seen this happen before but they are stuck in limbo, not sure why they still aren't here...we'll inquire. Another 3 days went by and they refunded my money without telling me why, but I just saw it on my credit card statement. I called and asked what the deal was and they said they couldn't get the 10" drums, only 9" were available ultimately. I said do you think you guys could have communicated a little better? Why should I have to call YOU to find out what the story is? Anyway, online I tried RockAuto, AutoPartsWarehouse, and they have some listed 10" in their rear brake selection lists, but then if you drill down to the details or call they tell you that the 10" (or sometimes something close to that like 10.34") is actually the outside diameter and the inside is 9.something inches. AutoPartsWarehouse sent me the closest they could get me to my order (which were actually 9" drums) and I brought the 9" drums that they actually sent. I got the new shoes along with the order as well as 2 new hardware kits. The mechanic absolutely refused to use the 9" drums...he said, no way, no way, no way. He said even if you have to bring back a single used drum on your next trip you'll be better off than what you have, but these 9" drums I will not use. There's also a language barrier because he speaks only Hebrew and Arabic with just a little English.

That's the background.

Does anyone know of a good source online for OEM-style 10" drums for a '72 Dart Custom?

Jim
'72 Dodge Dart Custom, 100,000km
non-Jew (Christian) in Israel, Middle East