The poster asked what tables in the price range of the P3/24 should be considered. That rules out any new VPI.
The P3/24 would be quite a step up from the older Planar model. The new 24V motor is a much better unit than the older Planar model, not to mention the poor mounting scheme of the Planar motor. As mentioned, the power supply could also enhance the performance of the P3/24.
I would go for a P5 if you can swing it, better arm and more visually appealing if that matters to you. The P5 is a better comparison to a Scout and I'd still go for a P5 over the Scout. I own a P5, also an older P3. I always have a couple of Rega tables in play, great value in my opinion.