You've got several questions and each may get a better response in the dedicated forums for Tripods and Lenses.
I've got the Sigma 150 and Nikon 105 f/2.8 VR for macro. The Nikon 105 is a very nice focal length for portraits and street photography, and the VR is a nice plus in that role. It also works with Nikon teleconverters so you can create effective focal lengths of 105mm, 150mm, 175mm, and 210mm. The Sigma is a very nice lens with OS and a tripod foot - nice for macro but a bit heavier and bulkier for street and portraits.
On your tripod, you might consider the Q20 over the Q10. It is a little bigger and provides more certainly if you add long lenses or lenses that do not have a tripod foot. The Q10 will hold everything you are considering but the Q20 or RRS BH-55 future proofs you a bit. I use the BH-55 with the lever release and RRS L-brackets.
I have the 16-35 f/4 VR for my wide lens. You may be giving up a bit in the corners, but VR has been a real plus for use on the water or other situations where tripods are not allowed or effective. The 16-35 also has filter threads - a nice plus allowing use with a CP or my Vari-N-Duo filter.