Nice DP. I wouldn't worry much about the price. A few bucks either way doesn't matter. Around the Northwest Walker Turner anything commands a high price. Very good reputation and highly desirable.
Follow eBay for awhile and you will likely find a replacement table. They seem to be be very similar for W-T, Delta, and Buffalo DP's of that era. Ihave three different DP's and they all are interchangeable.
On my Delta and Buffalo floor models, the table is bolted to a casting that slides up and down on the column. Then, underneath, a threaded rod with a bend in the end for hand grip, screws into a hole through the table to set the angle. Sometimes these just get lost. You could make one, or just use a bolt.