No apologies necessary!
I am not a lotus expert by any means, but when we overwinter tubers we do exactly as you said. However, you need a spot that stays relatively cold - if your basement is unheated, it may work. But they want to be stored between 35 and 50 degrees. Our basement is heated so that doesn't work for us.
We move our potted lotuses into the garage, make sure they are topped off with water and put them near an inside wall where, in theory, it's the warmest. We have wrapped the pots with bubble wrap or an old blanket in the past, but last year we just forgot and they were fine. I keep an eye on the water level until they freeze over - then I ignore them until spring. (My patented gardening method for most things!)
We have also stored bare tubers by wrapping them in damp newspaper and putting them inside a big plastic bag - you want them to not dry out but also not sit in water, if that makes sense. Those we did store in an unheated bedroom where the temperature was probably closer to 55 all winter and they did well. We made sure to check them every few weeks to make sure they weren't drying out. That was a bit more work than I am willing to do however, so we haven't done that recently!
My "out of the box" thought was to get a net bag and put the tubers inside and drop them to the bottom of the pond for the winter. The temperature should stay in the range they prefer and the won't freeze. Haven't tried that one yet, but we did overwinter a whole pot of lotus one year in the pond. That also worked - keeping it below the ice was key - until one of the dogs tipped the pot over into the pond in the spring and that was the end of that experiment! (They love eating the tubers for some reason!)
Hope this helps! If you get enough tubers, maybe you can experiment with a few different methods and see which works best for you!