89 Montero~ New owner ~ Having issues with rust & finding parts

[Twyla1]

I am a new owner of a 1st gen Monty and attempting to get it road ready. I have run across some major issues ~ The power steering pressure line not hose but line had a crimp and a hole in it, so I figured this would be easy enough to replace~ attempted to loosen bolts that attached it to the gearbox ~ grr it was really really rusty, sealed shut. So we got this wonderful idea well we will just remove what we can and get back to that later. We did. Now that we have the pressure hose, we cannot find the pressure line anywhere and cannot get the bolt removed from the gearbox due to rust. So I am thinkin we can get another gearbox lets attempt to find one of those well as everyone knows gearbox's do not run cheap. This is the only thing keeping us from being able to get this on the road. We have already replaced drums, brakes, brake lines etc. this was our last step. Can anyone assist as to where we can find the pressure line and what is the best way to get this bolt removed from the gear box, other than already tried heating, pb blast, good ole hand power. Im at a loss.