Re: Mirage 30 - propellor shaft strut
The strut in our boat seems similarly installed, no bolts visible at all.
Can't really help you with direct experience, but seems to be that if it's that solid you might try straightening it in place.. but I'd put the bolts back in first.
Bob Perry may have information on the strut install, although that may have been a builder's decision/method.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)