Transport captain - Panama City FL to Long Island Sound

It's around 28 inches between the manifolds.

Without a bow thruster you need a REALLY good mate, and someone on the dock to catch lines IF it's a floating dock. And, you start stressing these old pilings in a lot of marina's, to pivot off of, you might just end up buying one or two.

Hard not to like those Burger designs, with 12v71n's too!

Exactly what I was thinking!!!

Really a great looking boat. Especially for its age. I'm very jealous of the space in that engine room and access around the mains. What is the large cylindrical tank in the overhead of the engine room aft of the mains? Is that an air receiver? Or a fuel day tank?

The condition of the hull plating is a major point of inspection but not just the bottom. The older Burgers had tanks that were integral, meaning the tank bottom was the hull plating. Some of the tanks also had a common end plate. Since the tanks rotted from the inside out, you usually didn't know it was happening until you found salt water in the sewage tank or sewage in the fuel tank. In most of them the shaft tubes ran through the fuel tanks and again, rotted from the inside out. That led to fuel in the water or water in the fuel. These are important areas to look into during the survey, since repairs are fairly straight forward but quite costly.

I took a 91’ Burger (1978) through the Welland Canal every year for about twenty years. Back in 2000 was ready to do trip up canal in the morning but she would not start. We had to hand pump all the fuel into 50 gallon drums at the marina as there was water in the fuel.
They found that the shafts ran through the fuel tanks

Shaft tubes run through the main fuel tank immediately aft of the ER. The reserve fuel is aft of the main. Black and gray tanks are in the center of the hull between the main engines. Water is immediately forward of the ER door. These black, gray, and water are the critical areas for plating inspection from the inside of the boat.

An ultrasound isn't nearly as valuable as a thorough visual inspection of an aluminum boat. Unlike steel, aluminum can deteriorate in a very small area (think of a small piece of dissimilar metal sitting in one place) while the surrounding area will maintain it's integrity. I once cut a hull plate out, where someone had dropped and left a wrench in the bilge- there was a very clear outline of the wrench, and 1/2" away from that outline the aluminum was pristine.

Curious how you will inspect the shaft tubes that run through the fuel tanks? I'm assuming you can't access them from inside the tanks and the shafts will be in the way to inspect the I.D. of the tube. So what's the plan? Or will you simply assume the tubes will require replacement at some point and pull the shafts to inspect after you purchase the boat?
It's unfortunate Burger didn't build a void in the tank to run the tubes through or do a double tube so if the raw water side does fail you don't contaminate the fuel. maybe a retrofit to consider if you plan to own the boat for a long time?