@neauoire Good luck! Can recommend the Colligo lashings for tensioning them: https://static1.squarespace.com/static/63ed7dd73a616629fb44e69a/t/63fa5f2b8d43376876612efe/1677352760271/ColligoLashinginstructionsRev1_3.pdf

Although it looks like you've kept the turnbuckles! :)