Hi Wags! VizTerra would be an excellent choice for you because it was designed to be very user friendly. It has free live online training and also video tutorials on the website. And, free tech support to help you. With it you get 2d, 3d, and a construction plan, but you can wait to customize your construction plan until you need it like you mentioned. The 3d is fully interactive and animated (you can even record it as a video and instantly upload to YouTube for your customer to see!!)….so it will make a great impression for sure! You can even import a cad file (.dwg or .dxf) to see in 3d. The monthly membership is $95 with no contract, so you can start and stop any month you’re not using it….no sign up fee, no cancelation fee, and everything is included: free training, tech support, and updates to the software. The monthly is nice if you are seasonal or don’t design all year long, but if you do, you can always upgrade to the yearly membership and save almost 2 months.