I would also take the lens cap to the dealer.
I know what you mean that a larger table would be nice but the bracket attached to the trailer will be the weak point. I haven't seen an OEM table that spanned the width of the bracket but you could make one. You would need the hardware, which is easy to get, a sturdier table, and legs that would go down perpendicular from the outside table corners to the ground. Then the bracket would support much less weight.
DW, 3 Kids and our Goldens
2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD