Yes, it could use some sprucing up. I get the impression he stays pretty busy just based on his reputation, which is a good thing.Has to be typos.
I wish Scott at Hummel would redo his website, its need a lot of help.
Here's a picture from the website of a Onex builder who bought a Hummel/Casler 2400cc engine. I see a magneto going to the top plugs. The bottom plugs look like they are fired by an ignition system triggered by a unit in the distributor hole--maybe this one from Great Plains ($470, incl plugs). If so, the engine could be hand-propped using the magneto, then turn the secondary ignition on >after< the engine is running.I do like Scott's 2180 cc engine, but I don't know what he is using for dual ignition, there again, I want to be able to hand prop. Not that much infro on his website. I know Scott, and would trust him at his word and he sells a good product. That means a lot to me.
I can't tell much about the heads Scott is using from the photo. There's a lot of other stuff to like about the engine, though. (The oil cooler on top is just the way it is typically set up on the Onex, it could go anywhere).