I think about 9 weeks, full time. (I'm currently on sick leave.) Documentation took me relatively little time. Probably a week if I count my previous blog pos

I think about 9 weeks, full time. (I'm currently on sick leave.) Documentation took me relatively little time. Probably a week if I count my previous blog posts on the subject. I've had some false starts and gaps in my knowledge. I think that slowed me down by a factor of 2. If I lost all data, I think I can re-do it in a week and a half.