Wobbling Sealand china toilet and soggy floor (and a slightly 'droopy' looking back-bumper-bellypan) have me opening up the bath for a look-see, floor repair, and POR "Whitecoat" plastic painting of some knarly, what, white ABS? whaddoo I know from plastics, anyway?...
snapped some along the way to remind of how disgusting this eventual memory really is/was. the bright green stuff at toilet left is mold/mildew, thought I had seen the last of that after Katrina. at least I'm not surprised at seeing it anymore. we're all Mold Veterans, hereabouts:

I'm assuming inner black flange attaches to black-tank, out white-gasketed closet flange must be replaced. correct if wrong..
this bugged-out looking arrangement was holding two of the Sealand toilet closet bolts in, hey, maybe it's stock and just looks whack. amazing how often there is an actual reason for some crazy looking stuff:
another reason I'm anxious to fix this bath is the condition of the...the...plastic? fiberglas? (gotta dig on this and find out). time to repair some of these cracks (and maybe reinforce from behind..hot-glue and L-bracket or something back there) and get some of that POR "whitecoat" or whatever it's called...unless...I can super clean that sucker and have the repair not too visible:
so I drilled out the horizontal bands of rivets holding the molded bath parts and the toilet sections are about ready to lift out..BUT...there's another hidden band of rivets (buck rivets? they feel like they have a washer on the back side?) only accessible from the trunk box (boy, that's gonna be fun to try and re-assemble).
Is this the point where I should consider removing the rear exterior skin above the trunk box for mo' better access? I was hoping to keep exterior skin removal to a minimum (Rivet-Rookie Insecurity) but I'll probably have to address some tank-support and/or frame rust from underneath to get the new floor panel in.
here's one for "what did you find inside yours?" check out the flip flop. and there's a circuit breaker. If I had some kind of 'whole house' GFI protection, is this where it would be? Given it's a '69 I'm going to assume I don't have much in the way of GFI protection:
Wish I had the time/shop/equipment to do a guru-level frame/floor full-on, but this 23-footer takes up my ENTIRE back yard, less 6 inches! I'm trying to find a middle-ground on this floor/frame issue that will enable me to start sealing the exterior, replacing the axle and other much-needed work. all advice appreciated!
I'll keep posting as this moves along, hopefully I'll have time.