Hey CP genuis, is that correct? Will the wheels stay on for that speed? Will people stay conscious for the g's? How many trains? How fast the lift? Yes, money makes all possible, but what else? Just a bit cold in the air at that height and spped of the drop? I don't think you have been out of Ohio,have you? I am betting my carrer in this industry that if MF was raised to "750ft", the trains would falll apart like cars in a demolition derby. people would black out, and more than teeth would be chattering on the way down. I lift that high would equate a length of over 12,000 ft. long. That is a lot of real estate. How about brakes? Brake run alone would be over 500ft. Better use magnetics, as friction would be too hot, and fins would fall off. ENJOY the rides,let engineers say what is good and what works. By the way, ferris wheels are all about balance and counter-balance. Providing you can counter wind resistance with the base footprint, big sizes can work.