I too have my ACMPR for 25 plants (+ 4 recreational), they still use the old paperwork until things are updated to the new Cannabis Act.
In Canada there should be no cost. No cost to see the doctor and get your prescription, no cost to get your license (unless you go through someone who fills and files the paperwork for you. Don't do it, it's easy to do yourself. Message me if you need help, no one should have to part with $$ we get gouged enough as is).
25 plants is about the limit I was told, before the Gov gets antsy. More than enough for me but lets me experiment with strains, have more clones going etc. I started with 5 plants, went to 15 then the 25; I just submitted new paperwork to update my gram/day at each stage and it was fast. I've heard Health Canada hired a wave of employees awhile back to deal with the paperwork faster.
I did not have to send anything to the RCMP/police, didn't have to get anything to code. No one needs or has any business knowing, if they do they're probably trying to scam you. I may sound paranoid, I just get pissed off when people try to scam others, especially people with medical needs who are struggling to begin with /rant.
Totally worth it, just be skeptical if anyone needs anything other than the doctor giving you your prescription, which you attach to your ACMPR documents that get sent to Health Canada. Yes, on the form it says if the RCMP contact Health Canada they will give them "limited information". I can't see them doing that unless you're being sketchy, as previously mentioned.