Which would be a good tool to manage the WordPress and Plugin installations on all the domains...

Sometimes we need simple and effective tools like this. It saves time. https://convert.town/comma-separated-list-to-column

I pulled the trigger on Mass Page Tools - Enterprise, lifetime before the price increase. In the past I made some good decisions on some great lifetime deals on day 1. I missed being a founder for Mass Website Builder and Mass Page Tools but glad to be onboard now. I have managed to build some very fast HTML/PHP sites but it takes a lot of time to duplicate these for additional locations. The one thing I really like is when built, they do not need the protection and upkeep needed by Wordpress. I am convinced that during this year I will be able to build and duplicate many sites using MWB and the tools inside MPT. I also know that Daryl is commited to much development with MWB and MPT in the coming months and years.