Removed A/C....

Okay, I finally got all of the A/C components removed from my '71, now I have a big hole in the fan housing....

Is there a part available to cover this hole, or do I have to make one myself?

Anybody that has done this have any advice as to how to go about this? Materials, patterns, etc??

How about finding a new housing or fan unit? are they available? and if so, are they affordable?

Thanks for any suggestions!!

Regards,

Astrohog