Another approach - this may well be above your budget however. Go to Leanard Zinn's site. He is a framebuilder/mechanic/bike guru who got into framebuilding as a person much too bike to fit any stock frame. Recently he has started marketing a semi-custom bike for riders who are big enough to destroy anything out there. He's been doing bikes for big people a long time, is a wealth of knowledge and is very approachable. You have nothing to lose going to his site or contacting him.
I see the KHS Fite 747 for $2100 in his non-custom page.
https://zinncycles.com/non-custom-bikes.
Don't settle. Find the bike that sparks your passion!
Ben