The Orbit valves will work. I just finished adding 1" electric ball valves to my boat today. US Solid 1" ball valve, 12 volt, auto closing. My system is all stock with the exception of the valves and 750 rear bags and GG center bag which I think is 1100. I never timed the original system but the new configuration filled the 750's at 7.5 minutes each and the center bag at 13.5. The flow is at least double. The valves cost $44 each on Amazon. The hardest part is getting the hoses off of the barb fittings. You can mount the valves on the existing manifold but the locations are close together and you have to take the valve controls apart to get them in there. I ended up making a new one and reorganizing its layout.
2003 Supra Launch 22SSV
1986 Ski Natique 2001