I can relate to being away from the build for a while. I started mine 6 months ago, haven't touched it in 2 months and it will be another month before I can get back to it. I'm at about the same point. Wiring is about complete, insulation in and getting ready to sheet rock. Yours is looking good.
You asked for opinions on your speaker selection. Speakers are so personal that it mostly comes down to what sounds good to you. I'm not sure if you are in a location where you can hear the SVS's or not. I can't find them anywhere around me to listen to them. I've always been partial to Definitive. Again a personal thing. I just think that their high and midranges are great and as most anyone can thump away on a sub, the high and mid ranges are what makes it for me. I don't believe they package a 7.1 but you can always add two more satellites to make the 7.1. If you have time and are interested in comparing, they have a series called Pro Cinema that comes in a 600, 800 and 1000 models. These look comparable to the SVS's. May be something to compare the SVS's to. I've attached a review of the 1000 series for your reading pleasure. I believe these run between $799 and $1299 depending on the model. Not sure if this is in your SVS price range or not.
Good luck on the rest of you build and keep posting pics as you get things done. It keeps me motivated to keep going on mine.
REVIEW_2331.pdf 258.6826171875k . file