Finally, after all the discussions and comments from fellow modellers and having sleepless nights how best to realise my tilt-table benchwork, here is the result. I have put down the measurements so that you too can build one. What is important to note is that you can adjust the size of your tabletop. I am doing 240cm (L) x 120cm 
x 15cm (H) using two equal frames. This translates to about 8ft (L) x 4ft x 0,5ft (H). You can have smaller or larger tabletop to suit your need; the largestever made was 5ft x 9ft by Suzan. The side support panels should remain the same dimensions. The rest should be adjusted accordingly.
I hope to get this benchwork installed before end of this month so that I could start working on my layout.
germaN:160 by traiNmaster 
I have been thinking about the pivot point. The Wescott photos and your final drawing show two pivot points, offset to the sides of the vertical support. One benefit of the offset is the scenery side is partially protected by the vertical supports.
My concert is that with a larger table, the offset pivot points mean the table is not balanced and more likely to drop or be too heavy to for a single person tilt into position. I wondered if that was a concern?
Hi Dillon,
Thanks for your feedback. I did not have the exact measurements of Wescott tilting table; therefore, my measurements are based on best guess and need to be confirmed with a carpenter for the final adjustments