Thank you Cris I saw a Aluminum boat a while ago that had been submerged for 20 years in the sea it was hauled out and cleaned  it looked great no ill effects I could see.   Then I was told it was build for the Navy to test how it would stand up to salt water it,  I asked when it was built I was told 1939. Wow that sold me.   Marine ply looks lovely but it is not inexspencive  . so much less time , work and cost  building in Aluminum

if one used common sense about dissimular metals and  corrosion is not a problem with aluminum  I mentioned that boat that was built for the US Navy it is  a 30 ft hull submersed in salt water for more than 20 years built in 1939 is still sailing today . this sells me on aluminum and on boats over 40 feet it is just as light as wood with fiberglass or even lighter and is availible in 8 ft x20 ft sheets so very few joints to deal with how many wood hulls out there that have not seen  any wood replacement in over 85 years 

sorry being so late. i will put some pics together and send you. can you send me your email. i would send them there.  i m building the hulls in alu wheels on electric motor. so i can turn the hull and do the final welding in its best position. THAT CHANGES THE ENTIRE WAY OF BUILING THE BEST QUALITY ALU-HULLS!!!cheers mate