Greetings from Montana! We are the proud owners of a 1963
Safari with a bit of a problem. Its old! Soon after the purchase I was relaxing with a content smile until I spotted a loose screw. That repair led to some flaky veneer, leaky pipes, missing rivits, and on and on . . . its not fully rebuilt but were getting there.
Today its the black water tank flange. both bolts sheered off level with the the finished floor which seems to be green colored gypsum board. I bought a new Sealand Traveler lite low profile with a Sealand Universal Mounting Kit. My plan is to drill eight holes through the floor and into the black water tank. Its original but appears in good shape. I thought I would secure with bolts and washers inside the tank and seal with Vulkem. My reasoning is even if the flange could by broken off the tank it would require ripping up or cutting out the original floor, but if necessary I might be able to do this while staying within the profile of the new toilet to hide this remodel. Any advice would be greatly appreciated.