Question on launching, my son has a tournament tomorrow and I have access to a private ramp very close to where we are starting out to fish. But, the ramp is in some very shallow water and as far as I could tell it isn't dredged out. I pulled up close to the ramp a few days and it's only about 2 feet deep as far as I could tell. I'm concerned about being able to launch then get the boat back on the trailer so thinking of launching further away. What's a general minimum depth to launch and get a boat back on the trailer, specifically an Eyra?