So Pon are you saying the early Sapp rally cars didnt have bolt in cages?
Also if it was a diy car do you think they would go to the trouble of making and bolting in on the WELDED floor mounts and cutting thru the bulk head just to bolt to turret?..Surely welding it would be far easier than making the correct fittings....
Just ask a pro pon..you just had the later shell

which had an msa logbook..but after your messing about you'd need to re msa it no doubt.
..ps 1994 was when it was built and registered its not a 1.6L