Need some Assistance (donation needed!)

As some of you might know, I posted up a thread about a month ago asking questions regarding hovercraft. My group’s Sr. design is going steady and we already have our motor (12hp tecumseh) and now we are looking for an industrial fan to place on our hull. It must be a belt driven fan as we have a belt/pulley running off of our motor. If any one on here would know any vendors I could contact or if you yourself have something you could donate, that would be great. Please contact me if you need more information. Thanks!

bump, still in need of any fan, 36" preferably doesnt need to be belt driven, ive calculated two alternative designs that can allow the fan to run off the shaft of the engine