Glad to have you here, combiec.
If my overworked partner Charles manages to do what he said he would do this weekend, you will find three parts manuals for the 600 series tractors in the Tech Section.
Take some time and thoroughly explore the site. There is much to be found here. Then don't be shy. Start a new thread in the main forum or jump into a conversation in the Workshop section. With all the welding experience, I'm sure that you've got quite a bit of knowledge stashed away in that gray matter between your ears regarding fabrication techniques, repair methods, choice of rod, choice of welders etc, etc.
We'd love to tap into all of that, so don't disappoint me, now. :sidelaugh: :thumbsup: :thumbsup: :canada: