Well, I have kept an eye on this site on and off for a few years now and plan to commence a build in Jan 2016. I have been mesmerised by the number of variations and quality of work on this site and have often bookmarked various builds to a point where I could spend the rest of my life building and still not complete all those on my wishlist!
After consideration, I would think I may be best to start with a generic build such as the weekender or generic benroy. I received an injury a few years back and that tends to affect my cognitive ability at times, so I really love the detail that Mike has included in the generic benroy plans. Although my workshop skills are satisfactory, sometimes my brain seems like it's running 2 mins behind the rest of me

A few things that I am pondering are:
- I will generally be camping with my 13 and 8 year old daughters. Ideally, they could fit inside with me, even if it is a bit of a squeeze.
- chassis size should be 8x5 or 9x5. I don't really want to go larger
- I don't need to cook inside
- a space for a porta potty would be a luxury but not necessary first build
- I will definitely be taking a kayak on the roof wherever we go
- I will more than likely need to build my own trailer as I am in Australia and we don't have the HF option
- the trailer will need to have springs as more advanced options here are ridiculously expensive
- I need to work in metric as I can't follow inches....

- I intend to run a dedicated 12v deep cycle battery for those times when main power isn't available. Batteries will be charged via solar
- the finished trailer will be stored in my garage so shouldn't be 10' tall!

- my neighbour who is a welder, auto-electrician and domestic electrician has offered his help

I would love to hear comments and advice, particularly about pros/cons of 8x5 vs 8x9, best use of space etc. I'd also love it if anyone can offer metric plans for me to look at.
Thanks for your time,
Marty