1. All you need to take your restricted home (in Ontario) is a valid RPAL and the transfer notice which states the firearm has been transferred to you. Once it's at home, leave it there until you get the rest of your paperwork.
2. You will get a new RPAL card with attached ATT conditions and a registration certificate in a week or two.
3. If you are not a member at a range (in Ontario) , they require you to ask for an invite. You have to print this invite and bring it with you. If you are stopped by the police and they find out you are transporting a restricted, the invite serves as proof that you are not just driving around with a restricted firearm without reason. At my range, you can't bring any restricted firearms there until you take their ATT course and complete 4 probationary shoots (member or not)
4. When taking your firearms to a gunsmith it is also a good idea to call first for the same reasons stated in my 3rd point. They will confirm your 'story' if you are stopped by an LEO on the way to the gunsmith.