I very much doubt I could support either of the two options you
seem to be focusing on as it seems that your goal is to match seats
with the popular vote and is based on the assumption that the votes
that are being cast now are being cast solely for Parties.
The Canada Election Study of 2000 reveals that 44% of Canadian
voters cast their vote based on the individual, http://www.ces-eec.umontreal.ca/ces.html
the article, "Does the local candidate matter?"
I do believe that either a 50/50 MMP system or a STV system would
diminish the effectiveness of local representation and the vital
ombuds/constituency work of a MLA.
I also believe that the North should be exempted from any change or
their voice will be further diminished in the Legislature.
Perhaps if you proposed a less radical change to the system, I
might support it. After the intense scurtiny of an election
campaign, I very much doubt either of those system will meet the
required threshold in the referendum.