Clutch reservoir: adding backup reservoir?

Eagle Talon 1995: Has a slight leak in the clutch hydraulic system and I believe it's the release cylinder on the transmission case because everything down their is oily and can't find any leaks in the master cylinder or the lines. Just finally bled the system and working great but if I don't check the reservoir all the time it becomes empty and air obviously gets in the system. I know most will say just go fix it or get it fixed but trying to think of a way to maintain DOT III fluid level at all times until I can afford to put in the shop. The reservoir is already very tiny so even a small slow leak doesn't take long to empty. On this model car it"s like 1.5in diameter and almost 2in tall. What I'm considering would be adding a second reservoir beside it and either rig a tube into the side of it or rig through just the cap, only proplem with the second is gravity and lack of space that would be higher than this point for the 2nd reservoir. I'd like to hear from some creative people that know how to rig things. Thanks in advance.