That’s what I thought.
Did you loose money in it?
Did price per image?
Well what we did was fairly small all things considered but it was still a ton of crops. The best advice I can give you is to PLAN AHEAD and to price a little extra (i.e its going to last longer than you might think, especially if its a new client).
Just take the time and plan out how you are going to organize everything and more importantly automate it. Otherwise you'll be sitting behind your PC hitting render every 15 minutes. Sometimes I couldn't avoid that but for the most part I automated it using C4D takes. I suppose I could have used "render selected" as well...
One super important thing that I learned was to get the stuff approved... Even if it takes a while. What you really don't want is to render 100 crops and then you realize something is off with regards to the interior design because you'll just end up re-rendering everything.
In the end I didn't loose money, at least I didn't feel like I did. Its a different story if they'll also need you to put all of these together in a stitches version in PS / AP - I reckon that might be super tedious.
Because it was a relatively quick project I priced it according to what I thought it was going to take and then multiplied it by 1.5x . It worked out well for me but it probably won't for you because it depends on the quality / resolution and whatever. Just really think about it and assume its not going to go perfectly smooth.
I hope someone else can give you more info that I did. :)