RE: scale sizing for rc boats
The image you sent me was 8x10-ish. I scaled it to E-size (34x44) and it's a little blotchy, but you can build if you know what you're doing. It would give you a hull about 26" or so.
A PDF is attached to the e-mail reply. Just ask them to print it on 34x44 (100%) and you should be OK.
Andy