Fit rear brake discs & pads
Remove rear wheels remove calipers adjust handbrake down , may need a puller on the old disk
Put disk new back on adjust handbrake again, replace caliper, remove old pads clean caliper put in new pads replace wheel
With no problems going for it 15 Minutes each side - garage will prolly allow 1 hour
Fit new brake lines
Remove wheel loosen rusted up old brake lines assume nothing snaps remove the brake line holders and brake line.
Install new brake lines bleed brake system - 15 - 30 mins a corner to strip/replace plus bleed - if bleed goes well 30 mins if not well lets just hope it goes well!
So total 1.5 to 2.5 hours
Fit new clutch line
30 mins all going well including bleed time
Change brake fluid
Well they will do that when they do the lines
Change clutch fluid
They will do that when they do the lines
Tighten auxiliary belts
5 mins - its the 15 mins it takes to snap all the bolts on the undertray and the hour to repair/replace them all that hurts
Garage will probably allow a bit extra for each job just to be sure
Hope it helps - it's how long it would take me anyway.