DocDeVivo

I was a den leader and gave away my old uniform when that ended. Didn't expect to be recruited as ASM by the troop, but here I am. Scout Shops (in person and online) do not carry any shirts in my size and I'm told supply issues will keep things that way for a while. But I need a uniform for upcoming events and am searching second hand. I've found a seller on FB who has used shirts with both tan and brown buttons; new shirts with tan buttons only. Are both of these acceptable? I know the brown buttons are older. Do they fit better too? I've been told the newer stuff fits differently. Thanks!