2003 Regal 4460 access the Rudder stuffing box

My newly purchased 2003 Commodore is leaking too much from the rudder stuffing box. After the countless repairs already undertaken I can be pretty confident that they have never been touched in their 20 years. Might well be as simple as a twist or two but has anyone had any success in reaching them? Any tricks or techniques. I can barely reach out and touch them much less get 2 wrenches in there. I only know they are the leaky culprits by sticking a camera in on a stick.

I love my new boat but there have been quite a few head scratchers when it comes to regular maintenance reco's and nonsensical lack of access.