Q1. Yes according to Art 152. The charge for the UK Licence on transfer was £40. The CAA are known to be reluctant to issue them independently.
Q2. You need to look at the rating on your licence, is it Restricted or not. The process of removing the restriction required the submission of a form signed by the supervising instructor. Unless you applied to have the restriction removed nothing would have happened and you would be the only person with the record.
Q3 all you need to do is a IR Prof Check on a SEP, once its valid there is a process to cross credit from your MPIR. Do the IR and get the IR(R) signed off at the same time.