In the 1970’s, I met a German glider pilot who had built his own house as well as his own glider. The latter was not unknown in those days, but the former was far more unusual at least in the UK. It was a very impressive house.
He then told me it took fewer hours than the glider, an SB5 (V-tailed I thought mainly wood and fabric glider, but Wiki says "Structure GFK") which at the time was a fairly modern design.
Here is a video of an SB5 being launched:
I expect the plans are still available, and it is as nice to fly now as it was then, but as stated above, you can now buy much better for less equivalent of time + money.
Possibly even for less money, with time at zero value.
It is just a different hobby from flying gliders, IMHO.
Chris N