Been looking for an easy way to add some aux connections near the bucket. Technically there is room for 4 more valves, but I'd rather not be that tightly packed. I'm going to do electric. Will be good enough to run simple accessories. I'm done messing with the bistable mechanism for the barrier lift and am going to stick an electro magnet in it to hold it open.
Looked far and wide for a small 3 conductor connector and I think I found
something suitable which is 6.4mm OD.

Each port has 3 conductors so it's able to power and control a servo or similar. Ideal for a bucket quick coupler

Hydraulic quick connects on the left and electric on the right. Male end is notable longer. Looks OK.

Done adjusting the cabin parts to fit an operator. Needs to be detailed out.