Nice well performing radio! The 45's will be worth more than what you paid for the whole radio if they are in good shape. Are they globe or st?
The 224 should be easy to replace.
The speakers actually show up on ebay from time to time so keep an eye out. I assume this is in a console and not the metal cased table top.
Here is the speaker. Unfortunately this auction is complete.
http://cgi.ebay.com/Atwater-Kent-vni...QQcmdZViewItem
Steve