The sq tube frame similar to Arntz/Butler, and Paul's own design using 2" round tube. Roughly translated in Paul's own words, the front suspension was "Indy car type"
See:"Bennett "Flyer", brochure-interesting read " thread dated 6/24/15
razorwire, photos, how far along are you? I have some of Paul's drawings/notes/etc. if you are looking for any info on the Bennett Cobra I'd be happy to share.