There are a few videos here at the
EASTWOOD SITE CLICK HERE that may be of some help? I picked up a mig welder from them a few years ago and very happy with what I've been able to do not only for restoration but quick repairs like on the JD mower deck wheel support after hitting a hidden rock and welding a nut on a stripped and seized bolt etc.,
MIG welders
https://www.eastwood.com/welders/mig-welders.htmlTIG welders
https://www.eastwood.com/welders/tig-welders.htmlVIDEO LINK MIG welding basics:
https://www.eastwood.com/video-page-mig-welding-basicsVIDEO LING TIG welding basics:
https://www.eastwood.com/video-page-tig-welding-basicsMike