That won't work. Without the D10 you have all SWM equipment, so the D* workorder will generate a SWMLnb for the install. A SWMLnb will not work with a SWM8 (it needs a legacy LNB.) If you activate the D10 now the movers connect will generate a legacy LNB for the install (due to the D10 being non-SWM compliant.) It will then be up to you to "convince" the tech to install the SWM8.
As I said earlier you've kinda put yourself in a bind. The D* system is not setup for these types of situations. The tech may be happy to help you, but he also may flat out refuse your install. Adding the cost of the SWM8 and D10 together maybe it would have been better to buy that D12?
So, if I activate my d10 (I have wholehome that I activated online) Would the system build me a Legacy LNB and a SWM8 (then I could just sell my bought SWM8)? Should I take my legacy LNB off my house now when I move and provide it to the tech?? ALL I NEED THE TECH FOR IS TO PUT IN THE DISH!