Anyone know the inside diameter of the fan shroud?

My vehicle is a 2009 Tacoma V6:

I was thinking of taking on an electric fan conversion really soon and part of the equation is finding out the inside diameter of the fan shroud.

Does anyone happen to know off-hand? or perhaps have a shroud laying around that you could take a measurement for me? It's hot as hell outside, if I could save some time and not pull it off myself that would be a huge help!

Thanks,
Chris

 

Welp, wasn't getting a lot of help so I had to pull the darn thing off.

Inside diameter is 20 5/8" for anyone that would possibly need the info.