Hi I want to take a manifold. Pref oms or halcyon or others, break them up and use them on my bailout bottle and my o2 bottle. Reason is complicated but the manifold valves have a big stem on the and my bungees get a good hold on them. Anyway I'm looking to spend no more then $80 on a decent manifold. Please let me know if you have something laying around. Thank you.