Converting to a Non-A/C Heater Box: Questions That need Answers

yea, Looks like I'm going to have to make my own at this point. I'm in the middle of a dash frame swap so shouldn't be too hard. I just finished rebuilding my heater box. So I guess I do that next..
If your going Back from an A/C setup to a Non a/c heater box then you just need to make a filler plate for the smaller blower motor and cover the 2 holes for the a/c lines. It is only when going the other way do you have to make holes.