well, pump re seal is complete and good timing as the brushes were very worn (picture)
some tips
1, the brushes are removed by pushing them toward the center, if you try to push outward they cant clear the holder (picture)
2. be sure to lube everything when re installing, o rings, where the o rings sit and the contact surfaces where other parts mate.
the fit with new o rings is very tight.
3, when re installing the brush springs, i found that it was easier to spread the 2 legs apart and using a needle nose pliers to grab the entire spring between the legs would hold the legs open. then carefully inserting the spring where it sits on the holder, the long part is far enough over to engage the brush and then sort of push the whole thing down. then you an use various tools to grab the short leg and pull it over to where it locks in the holder.
4. removing the terminals was not that bad as they are 2 parts, so its easy once unsoldered and unscrewed to remove one side at a time. you are able to spin and rotate as needed to get the wires out so you can r/r the o rings.
lastly i would watch the vintage euro video, do a step, watch the next step, do that step and so on. its actually straight forward.
hope this helps !