Greetings again,
I have good news! The PCBs and components finally came! I've put everything together and powered the PSU up!
No magic smoke escaped!
I only found two "bugs" in the design. First, the two LEDs seem to be the other way around for some reason.

When CC lights up that means that the voltage is stable and when CV lights up that means that the current is being limited. Just keep that in mind if anyone decides to build this design.
The second "bug" is that I could only get a maximum output voltage of 18V even though my input supply was 45V. I tried changing the 47k (R20) pot but with no luck. After poking around I found that the reason was the 4.7k (R18) resistor. I put a trimmer in parallel and found that with an extra 3.2k resistor in parallel with R18 gives me an output voltage of 43V and after tweaking R20 I got it down to the 42V I wanted.
Anyway, I did some quick tests and it seems to working ok for my taste. So I'm overall very pleased!
Thank you all for your help!
Have a nice day,
E.P.
P.S. have some pictures

Note the bodge resistor.