I am renovating an old 48" model yatch its 11" beam, hull height deck to top of keel 6", and keel depth 10" from btm of hull to btm of keel i think it could be a marblehead , i have no mast or anything , and would like to know what height to make the mast ,and is it ok to use bamdoo , or would a fibre glass rod be better or make a timber mast if i can get suitable piece of streight grained wood any help much apreciated