HELP ..Need a Vacuum booster..

Hello, I'm looking to get a vacuum booster for a 69 barracuda, Don't know why it got this way but it's shot and it was basically brand new... no use crying over spilled milk now, But I just can't seem to find one any help will be appreciated.

I don't need the master cylinder either ....I figure if I need to get a Master also I'm just going to swap on over to manual brakes.

Any one try that (Power to Manual) I have disks now in the front also with brand new calipers so I don't want to waste much more time with this, My car is running real "Shyt" with little to no vacuum ....car is running rich like its going out of style..

Thanks for any help in advance.
I have always learned something new with the members here when I come across a new headache, so I'm guessing I'll be learning something new now.
Again any help will truly be appreciated.

Thanks.
MAPS