ah , i wasn't clear about the blue 'bunch of old stuff' - i'm not touching it. the old pressure tank, filters, and all that are staying intact. there will be a way to send water directly to the house from there, bypassing the storage tank system completely. I've learned the hard way in my diy projects to always have an alternative... at least until things have run for a while and proven stable.
All that old stuff is in a pumphouse, that may well have to be taken down to work on the well - if (when) than happens, i can run the storage tank with trucked-in water and move all that mess at my leisure, to get to the wisely advised state of the well being isolated and completely accessible.