Replacing brakes - need some help

[sgr60]

So the first problem that I'm tacking on this truck is the breaks. The pedal was soft and went to the floor when I got it, so my first plan was to see if I could bleed the system - that wasn't going to happen. The bleeder nuts on both front and rear were far too rusted to be serviceable.

So, I went out and got replacement wheel cylinders, shoes, and a hardware kit for the rear. And new calipers, rotors, and pads (and also bearings) for the front. I also bought new soft brake lines for the front and rear.

I haven't started on the rear yet, but the front has already given me some problems.

I've got the auto hubs out, and started on removing the calipers. I managed to get one bolt out, but the other three (between both sides) were completely frozen. I tried penetrating oil and heat - no go. I wound up stripping out the remaining caliper bolts. Now I'm wondering, can I cut them? Do I need to drill them out? With it so rusted down there, I'm really not surprised that it happened, I'm just hoping that someone else has been down this road.

Also, I was able to get the hard brake line disconnected from the mount on the frame, but now I can seem to figure out how to get the soft brake line off. Is it welded on there? The new line has a snap ring, but I don't see one on the old one.

This is turning into quite the first project.