I say do what you like. I know motorheads that work on all kinds of mechanical things.... and there seems to be 2 main veins they run in... the
build it, keep it, build another, keep it....
or
build it, sell it, build another, sell it....
I say do what makes you happy. I'm more of the "keep it" person, but I also keep them working.....
Dad went to / participated in a local show a few weeks ago. He was invited by a friend of his to participate who restores various makes of the older garden tractors. I believe all of his friends are "trailer queens" or will be. Dad took two of his better tractors to the show, his IH 782, and his 1650, both still wearing their mower decks.
Dad said one fella came by and asked what his plans were for these two, restore, or something else. Dad told them he may clean them up a bit, but they still get used weekly to mow and other tasks..... He said the guy looked at him like he was crazy...... seems that many people think since they are old, they need to be put on a shelf and looked at. If that's what you like go ahead, but there are those out there, me included are going to have them "earning their keep".. as mine work year around..... Keep up the good work, and put the 169 "back together" and put it to use they best way you see fit, even if that's to let someone else use it....