Hi Will, Happy New Year to you too
I made my build table very similar to David,s, did a nice job of keeping everything level & true...
Tho if using trestles, maybe as the build progress,s the weight on the build table can get quite heavy so I would suggest a trestle at each corner & maybe one in the middle, tho it depends how much "fitting out" you do whilst still on the table.
A little tip.... mark out the base plan on the table with the bottom of the front frame at the leading edge of the table, comes in handy for clamping it down
Enjoy your build, if you need any help with the kit, you know where I am......on here
Look forward to seeing some in progress photos too
cheers
andy