With all due respect, I think that you are comparing apples with oranges, here.
One boat is brand spanking new, new engine, new trailer, a very good reputation...turn the key and it's ready to go.
The other is a used boat, used engine, used trailer that someone has to spend many, many hours, and God knows how many miles, tracking down and picking up. And even then, unless Mr 97-tbird is handy with the Tig welder, or wishes to spend another small fortune, he has to get himself the console that he requested!
What's more likely, Mr tBird buys a brand new Futura and it tears into a hundred pieces of PVC incurring him the hassle of claiming on the warranty, or the used outboard of the 'unknown package' throws a wobbly and is rendered scrap without any such warranty to fall back on?
I could go on and on....but you pays your money and you takes your choice.
97t-bird, here's a short video of our Mk3 running through some choppy, and typically short, North Sea waters. Probably very difficult to assess purely from the vid, but much of it filmed where the waveheight comfortably exceeded 1ft.
We happily go well, well offshore in anything up to 0.8m of chop, checking the live buoy data / various weather forecasts before we depart.
PS. Best to wear your lifejackets (no matter how secure you feel), unlike the two pr1cks in the vid. ;-)