Cross to PCGS? It's currently the Top Pop at NGC with a 1/0. PCGS has a top pop of 4 in 66BN. The registry guys needing a PCGS 66BN might want it, NGC guys I'm not sure.
I always say leave well enough alone. Let someone buy it as is and take the crossover risk and expense.
BN is brown. RB is red brown. RD is for red. Right now the BN Lincoln registry is HOT!!! There are a handful of guys always fighting to the top population coins.
The OP’s dilemma is that PCGS only allows PCGS slabs in its registry slabs. NGC allows both NGC and PCGS.
On the type set registry its worth 32 points. The PF68 I have residing in that spot is worth 2,124 points. Must be just the wheat cent registry.