I too think it is well worth finishing, and will be a great heirloom when finished. How do you feel about using a bright contrasting print binding? A 40s look. The fabric would mostly pass for 30s/40s repro, I think.
Along the lines of frugality, my FIL was a drycleaner , and of necessity learned to sew, in order to repair, hem, take in and let out the suits he cleaned. He used old and "abandoned" suits to make very heavy quilts. They are not attractive, and are too heavy to be practical, but they were welcome on a few nights that the power went out, I can tell you.