Hi PG
Welcome to the forum.
You might want to have a look at the following FAQ which explains where everything is;
www.benefitsandwork.co.uk/guides-for-claimants/faq/forum.
Yes, I would send in a copy of your LCWRA tribunal decision to your PIP MR, remember the criteria are different.
Your award for LCWRA should be backdated to the date when your assessment phase ended, which is 13 weeks from when you gave your workcoach your fit note.
Gary