Re: How far could you cast with these set ups?
A good caster could undoubtedly throw the entire fly line. But in my experience that is neither required nor desirable. In general a properly timed cast with a WF line will travel farther than with a DT line because the running line of the WF is much lighter than the belly of the DT line. Your own casting stoke really determines how far you can throw the line. As you practice, you will notice your distance improve. If it doesn't, you're doing something wrong. The fly cast is a smooth movement between two sudden stops. Lift the line off the water, smoothly flick it behind you and stop with the rod somewhere in the 1 to 2 o'clock position. Then let the rod load as the line straightens out behind you. As you feel the load, accelerate the rod forward and stop it again at the 10 o'clock position. After the line tip has passed beyond the end of the rod slowly let the rod drift down.
This is a long answer to a question that can only be answered by you as your skills improve. But, remember most of the fish we catch are caught within 30 feet of where we are standing, so relax, slow down, and enjoy your time on the water. The cast will ultimately take care of itself.