“wasn’t that the bud lite jet from years ago?”
Looks like a BD5 jet... You used to be able to buy the kit.
The pilot built this one, according to the article. I remember seeing one at an air show in the mid-'70s. I recall that the retractable landing gear had a quick action, because the pilot made a low pass, flicking the gear up and down repeatedly as he passed the crowd. Made the BD5 look like some sort of odd bug, skittering across the airfield.