I was doing some reading on benzaldehyde synthesis and stumbled onto the P-2-P synthesis via friedel craft with benzene.  I did some quick research and it appears if that benzene had a methyl group attached the friedel craft would show affinity for the 4 position primarily.  If this were so I would think one could go through the simple steps of turning 1-methyl P2P into 4-MMC very simply.

This is but an idea at this point, what do you guys think?

perhaps with propanoyl chloride and toluene, but you will also get substitution at the 2 and 6 positions.  I'd also like to know how you're going to go from 4-MP2P to 4-MMC.  The ketone is at the wrong position in 4-MP2P.  You want 4-MP1P.  PrOCl + Toulene should do the trick.

I agree - it seems like a topic that has a lot of potential if more thought and references were put into it.