So you want to dedicate 61% of your business to one person?
Ever heard of the saying "all your eggs in one basket"?
If not let me explain, your basket breaks and you are left with tons of rusting equipment with payments, rent to store it, employees to pay unemployment to....................
Then again IF your basket does not break you saved all that time spent finding more baskets, it's all about your risk tolerance level. If you can get 5 or so seasons out of it, use the income to fund further growth. Grow your business so those 50 only account for maybe 10% of your business. Downside, this guy drops you, you go bankrupt. Never done it myself but I have heard itís not that bad.