Nice location, 10% shouldn't be a problem as long as you can offer them something to skip the 10%. AIR2TUNNEL's wind tunnel models are not only the fastest and biggest, but also the most quiet regarding sound polution issues and the only that, not only use our wind tunnels less energy, but they generate energy, which can be sold back to the mall. Energy $$$ for 10%!!!
Just do some serious calculations in the exisiting BP's and you'll find out that the ROI will be profitable!
Good Luck, and if you need info contact us at info@air2tunnel.com