I just acquired this tractor and it seems interesting but I have never dealt with this type of garden tractor/lawn mower and I have seen photos with and without cutting decks. Are these tractors valuable when restored or should I leave it in its original condition?

I have a Suburban 12 sears lawn mower in running/mowing condition and with all original parts. Paint has been redone, however supposedly in original color. I would like to sell to a collecter and wonder what the best approach and price would be.Cell number is 901 340-2071.