M75 Musser Century, mint. Will sell or trade for M55G

Very little use, custom foamed carrying cases (3), like new condition. I'm retired and too old to carry this heavy baby to my gigs. Looking for an M55G same condition or sale for $4,500 (with cases) or $4,000 without cases. Buyer pays shipping. In case of trade, shipping is negotiable.
Pictures on demand.