A/C housing removal tips?!

[optichris]

My A/C doesn't blow very hard. As a check, I pulled the blower motor to make sure everything looked ok. While I was there, I reached inside and felt the evap core. It was covered with dirt, dust, hair, etc. I pulled off what I could and the blower started to work better. Now, I guess I have to bite the bullet and pull the housing and clean it out for real. The manual says there are about six nuts on the engine side of the firewall to take off. Once that is done, it should pull out. I can't believe it is that easy. Any tips? Thanks for your help.