These smaller barstock engines are really cool for people who want to have a good time learning. Screw something up? No problem... The expense is primarily just your time; material is almost inconsequential. Castings are great and a skill all on their own, but they do up the ante.
I bought the inline plans for the engine yesterday and they were delivered very quickly. Heck, it was worth the $40 just to support the effort put into them, and they are fun to read too. Yes, I agree that they are well done. The engine is definitely on my build list. I was trying to decide if I want to do a Little Hercules (Bob Shores) or the inline next. It is a bit of a tossup, but I'm thinking I may do the Inline 4. It is just too cute (ouch! but I mean it as a complete compliment! LOL)
Kudos on the great job. I hope others help support your endeavor too.