Thanks for the warm welcome guys. Lots of further links to check out, thanks for sending that one @gmrhodes13, I'll add it to my reading list.
Yes @Nairy, I'm looking at going for the higher levels of approval and hope to aim to incorporate them into my initial build to avoid remaking some elements at a later date but I'll have to see what is possible.
I've registered with UKG @Sithping but not come across ISG yet so will check them out, thanks for the tip.