I did mine last summer. The engine was out so it made the replacement very easy. If the engine is in and you don't have a lift, it's going to be a struggle but doable. You may want to look at this site as well.
https://classictube.com/
I was impressed with the parts received and packaging. Todays proportioning valve is not 100% same as original. The bleeder port at the front has been replaced with an inverted flare port on every replacement unit I have seen.