Wasen't it shown that the cause of blow ups was trying to fire 8mm cartridges in the rifles? That was what I was always told. I have had a couple of Sedgley rifles that were made with low number actions, never had any problems with either rifle. I've never heard of a Sedgley rifle blowing up.
8x57s were one of the causes and almost all can be traced to the nut behind the bolt.
I collected Sedgleys for decades, had 60+ once. All Sedgleys were built with low number actions with the govt serial # eradicated and a new one put in the bolt sear raceway. Exceptions were actions supplied by the owner. One of mine was a 9.3x62 with a 4 digit action serial #. It never blew up in several trips to Africa.
Now I have four deluxe models left:
a short action Hornet (one of three documented short actions)
a 22-06 probably 1 of 1
a 6.5x55 probably 1 of 1
a 400 Whelen with the correct G&H chamber. Never seen another
They all get hunted, I hate safe queens.
OP's rifle has more value as parts than as a whole and as it was built from parts taking it apart is no sin.
best, Larry