I have my new/used 125 all plumbed and almost ready for the big swap.
I am sanding and polishing the entire inside.
Started with 220 sanding disk on the deep scratches.
Then 400, 600, 800. 1000, 1200, 1500 and 1800.
It is not clear yet, but my arm is really sore.
Next comes 2400, 3200, 3600...