The DP80 is a remarkable turntable. I’ve used one in a secondary system for a while. The sound is between the SP10/2 and belt drives. A good overall compromise. The 75 is easier to source. Basically the exact same as the 80 but without the pitch control and quartz lock defeat switch to which I think is useless. Tell your friend to get a Dp75 and it will be a substantial upgrade to his Pro-Ject. Currently have a DP75 in the DK2300 plinth and a DP80 in a stone plinth.
On on a side note besides the feet, you can fabricate a better armboard out of brass or stainless. A good machine shop will be able to make one for you if you have the original.
On on a side note besides the feet, you can fabricate a better armboard out of brass or stainless. A good machine shop will be able to make one for you if you have the original.