If your happy to operate a spanner, can read a book and have access to somewhere warm and dry that you can work in I would save my money and invest it in new parts, the tools to do the job and get on with it.
Brake pipes are the easiest thing in the world to swap, buy the pipe from a factor along with a bag of ends. Get a flang tool kit from machine mart. Bit of practice on doing ends and your away... Do one pipe at a time so you know the 'pipe run' and don't get things mixed up.
Also, you could use the savings to invest in a full set of new calipers, keeping the old ones to re-furb and put on the shelf for next time.
It ain't hard, but for me and some other members on here that's easy to say. The key thing is in [url]YOUR[/url] confidence and ability...
This posting may have been helpfull, on the other hand probably not... Either way, I may have had drink when posting it in which case it's probably not as helpfull as it could have been
Work safe, and remember all technical problems can be resolved with a hammer, the trick is knowing where to hit it and how big a hammer to use (I often find it may also help to have a spare bit in the shed to replace the bit you have just mullered

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Work in Progress (or not as the case may be) I give you....
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hereWork in Progress (or not as the case may be) I give you....
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