could you describe this process? and what type of router bit?
regarding turning it over, I don't thnk I can, because it has 4 hefty legs mounted to the underside. although it is totally worth a look
Clamp, tack or use two sided tape to mount a jointered or straight edged board on two sides of your workpiece, to use as rails to guide your jig. You set it up so that both boards are on the same plane. Easiest way is to level the workpiece, or whaqtever the workpiece will be setting on (or mounted to)... then put a level between an end of one rail and the same end of the other. Repeat for the other ends.
Use a dado style jig, that is long enough tol extend between the rails. The But I use is a Magnate 2707 Surface Planing (Bottom Cleaning) Router Bit - 2-3/4"d. The bit will be big enough diameter that you'll have to mount it with the chuck stuck through the slot of the dado jig already. Some people use a guide bushing... Since I'm not really doing a true dado with it, I use guide rails across the top of the jig so that the plate of the router rides inside those guide rails of the jig
Cutting process is you go across and back... as you move move the jig up the rail after each pass... to make an overlapping cut into a fresh area... until you have the whole workpiece planed.
What you are doing is suspending the router above the workpiece at a set plane... ending up with a flat workpiece.
You can use a smaller bottom cleaning mortising router bit (I've done with a 1" bit" . Just more times across to get it all done.
Since you are at 24" with your workpiece, I'd go with a 2 2" x 3/4" strip next to the workpiece and two 3 to 4" x 3/4" rails outside of that resembling:
...That way when you go across and get close to the rails, you have enough room to get the bit over the edge of the workpiece.
What I have is rails made up with two 3/$" thick rails assembled into an "L" so that I can screw them to 3/4" plywood, however wide I need. Since you only have one project planned, you don't have to get fancy or re-usable... but your choice.
I've planed 24" to 36" wide bartops, up to about 20' long (so far) using that same technique.