Went ahead and prodged on. After my tourch ran out of oxigenizer i had to sawzaw the last backing plate off, but all good.
I have to say the rear disk brake conversion is way satasifying feeling and much easier then the front.
Spent the rest of the day helping my brother with his bronco build. He is getting a double flaring tool, this or next week, so I will run my lines then.
Any one need any drum brake parts? Yours for the shipping. The springs are good, and the slave cylinders look good. Drums seem ok too.