Welcome Alan, comfort zones are overrated... just jump in with both feet. Gav's advice is on the money, and the mock build especially is a great place to start. Some people stain the body and neck with different colours, others carry the body stain through to the neck, personal preference really and depends on the look you're going for. Typically with products like Dingotone the top coat for the neck is a slightly different formula, which provides a harder more durable finish and remains fast to play under the hand. So, there can be value is using neck-specific concoctions.
I'd suggest having a look at the complete SG-1F's (I'm assuming that's what you have) in the Gallery section, and the in-progess builds in My Build Diary area and see if any colours or stain combo's leap out at you. Also, maybe search some SG images on Google and find a colour or look you particularly like, then the collective forum wisdom can offer some advice on how to achieve that finish.
Good luck with the build and don't be afraid to ask any and all questions.
(BTW, the 2nd half of the Dingotone video Part 2 shows the application of DT neck stain, I'll add a link here)