Back in the mid 80's..I weighed about 450 Lbs and was looking for a scale, back then the normal scale could not weigh me.. So my darling mom had purchsase a doctor scale from a local scale company.. It is costly, but last a lifetime and a accurate reading. My scale holds 350 plus have a special piece of metal to attach(100 Lbs extra) to get an accurate reading..
Good luck on finding a scale! and way to go on your 4 Lbs loss so far!!