Was discussing this and similar scenarios before there was talk of shipping disruptions, but the clues were on the horizon. You are right on: we will probably be saying things like ' Remember when we could buy all those great things with a few keystrokes and have it at our door in a few days?'. Hams largely don't build any equipment and we have been led to believe that only the latest, greatest 'contest grade' wonder box is worth our time. For atLEAST your back-up, consider simple ANALOG (non-DSP/uProcessor) based transceivers. OTOH, Cooter and I make the weekly traffic pass using tiny, shirt pocket QRP CW transceivers. Because I have digital capability, I relay Cooter's reports to JohnyMac on HF digital for his viewing pleasure. Go as simple as possible for your back-up transceivers.
GET WHAT YOU CAN, WHILE YOU CAN.
Small AM/FM and Shortwave band receivers and a way to recharge the batteries, could be worth their weight in gold if TSHTF. Informatin is always a premium. These "plastic radios" allow you to gather information/keep non-hams busy, without exposing your irreplacable ham station to damage. Keep the ham rig in a can and use the "plastic radio" for routine listening, whenever possible.
Do you have the capability to solder, saw wood/metal and otherwise repair things WHEN THERE IS NO ELECTRICITY? I have a shop full of self-refurbished 'vintage' tools that any Amiish person would feel right-at-home using and I use them often.
BATTERIES for your rifle red dot optics.
Heirloom seeds (domestic, don't trust Communist China for real heirloom seeds).
Garden tools, hand tools, lubricants, adhesives, nuts, bolts, screws, nails, paints wood oils...for your shop.
We have great electric gadgets, however, as I used to say for years living aboard my sailboat when I'd hear things like "Why do you carry a sextant and paper almanac and charts- that's so slow and old fashioned'. , "We're only one lightning strike away from The Age of Sail.".