Like you, I am also new here. I have owned a 1020 Hydro for about 15 years now. Not sure of the year but I bought it new. Was a dealer demo with 30 or 40 hours on it as I recall. Now I have 1404 hrs.Has been an excelent tractor for my needs. I only have 7 acres and mowing is the main job as usual. My brother and Dad both have 1020s also. The only thing I would caution you about is the Hydro Pump/Motor. It is a Hydro, right? The older models did make more noise than new models do now I'm told. Mine is very noisy now after plowing a garden that was sod. This happened a few years back. I must have over crowded it and hurt something in the pump/motor. I posted my problem a few days ago asking for info as to where I can send it for rebuild but have not had any replies yet. I understand from reading other posts around here that Hinomoto built these tractors and is no longer in business. This concernes me as to availability of parts.
All in all I would not hesitate to buy another 1020. It sounds like the price is right. I wouldn't sell mine now for $5000.
Best of luck.