I have a straight run of 14 stairs to basement. Used stair platform lifts are basically impossible to find, however, used acorn or other chair lifts with seat are plentiful. Do you think it would be that difficult to convert one. Possibly by removing seated chair and attaching a platform for manual chair to roll on and off I live in rural area and with a do it your self application don't really have to worry about codes as i would remove it before re-sale which will be after i am gone..