Portager 22-23
I can not find anything on the rigging of this boat, so will have to give you some thoughts on other models and past experiences.
First the two holes on the mast base setup; you’re correct in using the back hole as a hinge for raising the mast and then when all stays are attached place an additional bolt or pin in the second hole to stabilize the base from twisting.
You say the mast will only go up 95 percent, how are you calculating this? the second hole in the maststep will not line up, the forestay is a short of length to attach, or the mast looks like is leaning towards the back of the boat when the other two items work.
If the front of the maststep will not go down enough to attach the second bolt then you’re correct. You say you removed the two baby stays, which is correct, then two possibilities; one is the backstay is bound at the top of the mast or there is too many kinks in the stay from storage. Using the line you’ve attached to top front of the mast and run back to a winch will have to be cranked real tight to stretch the kink problem, you may have already tried this. The other problem that no one has yet seen or heard of, that I’ve seen is; the underside of your hull has weaken to the point where setting on the trailer bunks the boat is bending in the middle so that the maststep base is pushed up and actually higher than the original alignment with the stern and the bow.
The work around on this situation is to place the boat in the water and then raise the mast.
We had an older Rhodes 22 at the lake, they have somewhat a flat bottom, solid keel with a drop board, I do not know if the hull was weak or the keel was carrying all of the weight on the trailer, but the only way to step the mast was in the water not on the trailer. The owner was very old who had the boat and never sailed it very hard, he has past away and the boat was sold and removed from our lake so, I do not know what future problems are with this boat. There have been a couple other Rhodes 22’s at the lake that never did this!
If the mast base works with the 2 holes and the forestay is many inches short there may be an additional adjuster missing between the end of the forestay and the bow attachment.
If everything hooks up but the mast, from a distant, looks sloped towards the stern then maybe it was designed that way, we call this mast rake!