Thanks PAR and Garry,
I'm doing exactly what you said to me,looking prospects and asking for more information over forum.It seems that my idea about overpowering PS 22 wasn't good.
Looking to OB 20 Garry,I must believe everything you wrote.Though I am retired now,and I cannot spend whole day for building, two years looks to me quite enough.I was concentrated on S&G method and here I found for side planking Ashcroft method.Does it mean to use hundred clamps as I saw on some pictures (lot of new tool to by). How much complicated is this, compared with S&G.
Garry, looking to your last thought, with 65 years I have not much time, decision must be done now so that preparation can start this winter.In the meantime I'm just starting to build Gentry's SOF rowboat Whitehall.
Ladislav