Sounds like its a badminton court rental 90% of the time then a LAN center 10% of the time. We need more badminton courts, though its Langley so too far from me.
18,000 sq foot should fit around 15 courts? $20/hr per court if its fully booked, 8hr day, $2400/day minus expenses best case? I don't think that will pay back very quickly..
The point tracking is a great idea, I was thinking of manual tap with a racquet but if he can automate it, you could charge more per hour.
Cost should be in the $6-10 million range, PLUS all the electrical and hardware stuff hes adding. I only saw "112" address, if someone can find it or recognizes the area.