For fuel hoses I've used Tygon clear yellow F-4040-A and quick release dry brake connectors to make tank removal and bypassing the pump easier.
I have a push button switch for running the pump to prime the carbs as I haven't done the RD07A breather mod yet.
I can also use it for sharing fuel or draining the tank by disconnecting the connection for the carb and plugging in a length of fuel hose. It's handy if I need to remove the tank and it's full or for draining the tank down for winter storage.
I also used 10mm clear Tygon 2375 tubing on the rear brake between the reservoir and the master cylinder as the original braided rubber hose was sweating brake fluid.