Thanks Bakster for compliment.
Perhaps it would not take you that long. It has been over a year for me, working in all my spare time. I find that speed of progress is in proportion to degree of loving to do it. Some parts are more loving than others. It can be surprising what turns out to be loving or not.
I have been doing some landscaping over the last few days. Filling in the gaps between road and footpaths etc with foam. Beforehand, I dreaded the idea of doing it. Never done it before, and felt some apprehension of doing a poor job of it. As I was progressing from the most easiest sections, my confidence in using the foam increased. Now I love using the stuff. Found myself working longer hours in the day because of it.