74%! Not bad. Hang in there. All those sealer coats and more sanding between each coat, take time.
When they're ready to ship, Jim will email you some photos of your speakers. That will be a big day. The hardest part for me was the scheduled FedEx delivery day. The more I waited, the more I had to go pee. I feared missing the doorbell while I was peeing.
Take photos of the FedEx guy, the boxes, and all the packing material.
You can prepare for one thing now. The plinths are packed separately, not attached to the bottoms of the speaker cabinets. Jim supplies 4 large hex-head lag screws & washers for each cabinet. The plinths are drilled to fit the screws and their underside has a wider countersunk hole so the hex-heads fit flush. You'll need a socket wrench to drive those screws in. It doesn't take much torque, but a socket wrench makes it easy. On my Veracity STs (and the STs too) I needed a ½" socket. I would expect your S3 Encores will have lag screws at least that large.