This is the first year I've had EE. This is a question that will come up more as the season changes. So I thought I would start now. The bulbs will have to lifted and storage because of our winter are to cold. What are the steps to get my EE ready for winter?
Just me but I would dig up the caladiums and mulch your others in with leaves or hardwood mulch. That close to you foundation you will find them coming back on their own. A bit of protection and they would be fine.
Stop watering now (if you haven't already) to help them go dormant. When they have pretty much yellowed out and maybe before the first frost, dig the ones you want to move and let them finish drying in a warm dry airy place. Let the foliage shrivel and dry.
Store bulbs in dry sawdust, vermiculite, dry peat or wood shavings or a paper bag, in the dark, in a coolish but not cold room (45-60F say) where it isn't humid.
Plant next year after the ground warms up.
You might want to dig them all up so you won't upset your present "look", unless you want to take from just one end or both, or equally spaced along the row. If you dig all of them, you can sort through them and pick some nice ones for each site and replant next year.
PS If you want to, you can start them early indoors in pots, if you have enough light, and plant out when it's good and warm next June.