you should have heat. think that is standard
no emblem but comes on with rear window defrost. test em with a spray mist
all cladded have the same cap just taped on, not including extending mirrors.....i think. another option is buying pre painted covers, might get lucky an find ones your color, or maybe your painter can paint them.
http://cgi.ebay.com/ebaymotors/Cadillac-Escalade-Chevy-Avalanche-Mirror-Covers-Trim_W0QQcmdZViewItemQQcategoryZ33649QQihZ008QQitemZ180106422035QQrdZ1