Re: Ladder needed...'90 200 Horizon
Yes mine was a folding ladder. here is a pic of the holes where it was.
I'm guessing yours was an "L" shaped ladder that pivoted on the hinge mounted at the holes in the middle of the swim platform.
Mine is a folding ladder that folds in the middle of the ladder, and also pivots on hinges at the aft edge of the swim platform.
I suggest two options for you:
1) Mount a new, telescoping ladder using new holes, or
2) Have a marine rigger build a ladder that replaces the one that used to be there. It shouldn't be too difficult since the ladder itself is rigid.
Good luck!