That was a steel this should make you happy. 12 years ago I paid $3600 for just the original two correct carbs, intake and aircleaner. After sending the carbs back to USA to be restored, restoring the other two parts and grabbing the valley pan. fuel lines etc it ended up costing $10,000 in NZ dollars, equivalent of $7500 usd. So you got a bargain. I happy though, world just getting bigger, better to grab the items when you can, rather than kick yourself latter for missing out. As they say "better to regret the things that you did do, than the things that you didn't"
Take care up there in the U.S from us down here with the penguins.