It took me 5 years to construct my Classic IV (I was working at the time)
It took me over 17 years to build my plans build Skybolt. (between work and retirement)

I was not building to fly. I was building to build, that was my hobby and I loved it! (and you better love it or it never gets completed)
Over the construction time your reasons for your flying dreams may change over those years.

In our dreams, what was once very short take offs on mountain ledges may become to real docile flat black top surfaces as we get older.
Of course your choice / decision is based on the NOW

The crazy thing is...No sooner than I completed the Skybolt we moved down to Florida. I sold the home at the airpark and I never flew the Skybolt.
Life is unbelievably strange !