[brewjitsu]

Wow thank you everyone there are some really valid points here and some I had not thought about too much.
I would be lying if I said didn't feel as though perhaps I'm not up to the job. I do think that if I put my mind to it I could do it but I guess there are 2 main concerns I have.
1) I'm not super patient and I think this is going to take me a long time with my limited free time of having a professional job and young family
2) Space. That is going to be my biggest stumbling block. If I were to build a shed or extend the garage I think the money that I would spend on doing that as well as the tools I will need is going to all but negate any savings that would be made and that was the major motivator for wanting to building it myself.
There is no rush so I will continue to think and read information on this forum and look to meet up with the Cobra Club here in Adelaide.

Once again thank you all for your input it has been very helpful.