Lemmerhengst, Thank you for the reply, I saw that site and couldn't reach it, thank you for pointing out that they are rebuilding. I'll keep an eye out, looks good.
Joe

Hello Joe,
Try AMBO (google)
They are the association of model barge owners and I believe they are based around Maldon, Essex. A great site that is currently under rebuild (like many 12'' to the foot barges!)
Good luck with your research.
Cheers Lemmerhengst

Hi Joe,
Just happened to be trolling by the computer when it honked! 😁
Glad it was useful, don't forget the Build Blog 😉
Have fun, Doug 😎

Hello Doug, Thank you for the quick response! I will probably take the hull lines drawing and create the ribs, etc.
Cheers Joe

Hi Joe,
You should be able to find something here.
https://www.google.com/search?client=firefox-b&q=thames+sailing+barge+plans&sa=X&ved=2ahUKEwic8szWkYnfAhVDZVAKHXeMDvAQ1QIoAHoECAQQAQ&biw=1922&bih=953
You might have to do some scaling up though.
Happy Hunting, cheers, Doug 😎