5067 can be done through the kitchen, 5069-k and the 2.2 preview roms can be gotten from no2chem's FTP.
The kitchen comes from ppckitchen.org, and there is installation instructions on the site.
No2chem's FTP site can be found at
ftp://up.ppcgeeks.com/Titan/Users/No2Chem/ and you would have to get an RUU to install many of his roms there.