Has anyone in the Washington, Labadie, Union or just Mid-Mo area installed a Mega transducer on a transom and would possibly be willing to give some advice (or even help for beer and/or $$)?

I have a 2011 Triton 18Explorer. It has a small step, then the transom. I know the step isn't the place to install it, but my motor mount doesn't leave a huge amount of room between it and the bottom of the transom. I don't have a jack plate. Humminbird says keep it out of the "jet stream" when you're on plane, but I'm not 100% sure how far up the transom that might be. I believe it's going to have to go right in the middle under the motor, but I don't have any experience installing these. This is the kind of thing I typically have no problem doing, but given the location, I only want to have to do this once.

I was going to have it done somewhere, but I'm impatient and because of BP's Spring sale, everyone is backed up to the end of the month.