your not going to harm it much with no fluid, should be ok. best of luck
If you run the engine with the pump dry, you can trash it in about 60 seconds. One of our porters found this out the hard way.
I had just done a bunch of work to a car, and was in the process of refilling on the fluids, but was out of PS fluid. So the car was completed, except for that, and had not yet been started. I set it down on the floor, cleared the rack arms, and left for the day.
Next morning I come in, the floor under the car was cleaned, and the car was sitting there with the brand new accessory belt chewed off into melted shreds, with the PS pump pulley at an odd angle, and the shaft locked up.
Porter thought the car was "together", he started it, backed it up, cleaned the floor, and pulled it back in place and just then "heard a noise".
So yeah, don't run the engine with the PS fluid low (or in this case, empty).
I would not trust an epoxy-from-a-tube fix on a high pressure hydraulic line. These lines are not all that difficult to replace, just a bit fiddly to get out. There are a couple different versions on the ALH, and I am not just speaking of manual vs. automatic. So if you get a new or used one, make sure you get the correct one.