Hi Caribou. Happy to share the spreadsheet with you. Your email has disappeared from your message though, probably removed by an admin. So I’m not sure what’s the best practice for sharing files here, but I’ve put it on my google drive for now. Let me know if that doesn’t work. Here’s the link:
The spreadsheet is pretty simple, and can probably be improved tenfold, but I think it gets the job done. Indeed, its objective is merely to determine whether making a buy-in could be advantageous or not, taking into account all the major variables that I could think of.
As mentioned before, its heavily dependent on assumptions though, so make sure to plug in your own!(convention: input is in blue, calculated fields in black).
Let me know!