At my grandparents place theres an old wooden boom in the rafters of the shed. Not sure how old but very. We also got a aliminium boom and an old 1 piece fiberglass mast with a triangle sail. + some ancient Ten Cate boards. I reckon i could just about start a museum on my own

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Anyway i have four sails. A 5.0, 5.8, 6.5 and a 7.0. I find i'm prity set for all conditions except for when it gets abouve 30 then the 5.0 gets a bit out of control. Even with absolute full downhaul. My two smaller sails are wave sails and two larger ones are freeride/race sails. There all 2002 or later except for the 5.0. But i have found it to be way way a head of its time. Its a 2000 Neilpryde Core and probably our second nicest sail (behind a 2004 or 5 GTX). Boards i mainly use range from 98L to 158L.
With this gear i find i'm set for all conditions. The only time i cant sail is in virtually nothing when i would need a 10m sail to get me up. I think it's deffently a safe bet gettin about a 5m sail. Thats the first sail my brother and i got and its lasted well. After that we got the 6.5 then 5.8 and finally the 7.0. But i think Edge is right going with about a 5.
Bubs