The webpage I linked in is not one of my repair/restores. Just some data I am compiling for my near future restorations of 3 Tek 485's I have sitting on my shelf currently (along with 465, 465B, and soon 453/454 & 7000 series). I will happily start threads for these restorations, as well as others for all of the Cal gear for said scopes that I am collecting. Most recent thread in progress is the 067-0532-00. (awaiting order of resistors, caps, etc)
https://www.eevblog.com/forum/repair/tektronix-067-0532-00-repairrefurb/Thanks for the interest, though. I will link in those threads and any web pages I compile of the builds if you would like.
I personally still consider the Tek 485 to be a classic instrument, as it's the top end of the 400 series. The 465 (with discrete vert out amp) is a definite classic. The 468 certainly is not - although I do repair them as well. ( I used one as my Tek scope repair learning platform since it is of no major classical/historical importance! ) The "500 series enclosure" style of cal-gear is definitely a true classic, of which I have several - 106, 184, 191, 284, '0502, etc) But I've get to get into the total & complete classics of the REAL tube equipment.... soon, soon.. :-)