DIY aluminum wing source
 

No affiliation, just popped up in my FB feed. Never heard of them.
Just bare foils and end plates. Required welding or riveting and drilling. Less expensive than other aluminum wing options, if you can do the fab.

https://wing-logic.com/shop/
Some CFD data too

https://wing-logic.com/wp-content/up...-1-150x150.jpghttps://wing-logic.com/wp-content/up...43-150x150.jpg

Good find! I'm not an aerospace engineer by any stretch of the imagination but the CFD data looks reasonable, especially for the price. Looks like you only need common tools, the only special piece of equipment someone would need is a TIG welder to make the mounts.

Should the endplates be larger? Or are these only just to reduce drag on the edges of the airfoil? Seems like an easy "mod" if you already are fabbing this together. Maybe a dumb question.