Unless the housing is cracked you don't need a new one. I'm sure the gasket just fail and it can be replaced. Google Oil FIlter Housing DIY and I'm sure there is something out there.
Nothing else to really do along with that job. Fix the leak and that's it. Please don't pay $625.
You canít spend all your time worrying about where your next Twinkie is going to come from, so follow rule #32 and Enjoy The Little Things.