They literally had all the pieces already in place with their catalog/mail order/warehouses.
They already screwed up however
In 1993, Sears discontinued its famous catalog to focus on in-store retail operations.
To fight off Walmart they got rid of all the shipping and things that made the catalog work in 1993 like the little outlet /pickup stores in small communities.
They focused on the physical stores and peaked in 2007 just in time for Amazon to take off. They no longer had all that distribution that gave up in 1993.
Ya, Amazon dominated by going from books to everything. However more importantly the put warehouses and distribution EVERYWHERE… It used to take 2-4weeks domestically to buy something mail-order or on line. It was amazon that got us down to 3 days, next day, then same day for online orders.
Back in 1993 Sears had this ability… I used to remember my mom shopping from the catalogue and driving in to the closest little Sears pickup location which where everywhere like little UPS stores etc. Hell further back in time you could order a house from Sears.
In hind sight, if Sears still had its credit division and distribution network it would have been able to take on modern online buy now pay later services and been able to out deliver amazon.