Just use vice grips and clamp all the lines. Take one clamp off at a time and check pedal before you take the next clamp off.
If you still have these wildwood lines fitted make some blanks to block the lines at the hard line on the chassis mount.
this is what you need if you can`t make some thing up
Edelmann Inverted Flare Plug Fittings 120300.
they are probably available from Aeroquip as well.
if you are carful you can use a 3/8" unf bolt for this and a O-ring one for each fitting you want a BS010 o-ring
put the o-ring in the fitting and nip the bolt down onto it . do not over tighten .
bleed by loosing the bolt.
any questions PM me for a contact number,
eliminate the cheep parts first.
you can try taking the callipers off each disc fit a block of wood in each 2mm smaller that the disc width and pump the pistons out and push back by hand to bleed air , then refit.
you can do this with caliper on, if you have an old set of pads. but don't pump the pistons out of the calipers