Hi, Can you kindly quote Mitsubishi Starmex MSY & EF series for following option for BTO 5rm flat 1) System 3 - 3 x 9k btu + System 2 - 2 x 12k btu 2) System 4 - 3 x 9k btu & 1 x 18k btu (what is the max possible btu?) Please include installation and upgrade as well. Thank you very much