I am in the same boat as you. 2018 was the last time I was on here and almost was ready to start it after 2 years of learning and designing from some really top guys on here. It was so easy to source materials and mild steel box sections was cheap as hell but now as you say they have doubled in price and I can't even find any suppliers for ball screws and the ones I have for linear rails they only stock a few. Not even looked at the electronics side yet. Dont know if I should just save money and wait to see if things go down and new suppliers start selling or keep searching and hoping for the best.