Right managed to get the rivets out, i used a wafer thin cutting disc and took the heads off the rivets from the inside, they punched straight out no problems, and through patience and a steady hand i might add

there is no marks left behind from the grinder. i had tried for over an hour with a new drill set but the rivets although mild steel were killing the drill bits off in minutes despite slow speed drilling and with oil.
whilst working on the tub i noticed loads of holes, wondering what they were all for ?
thought i would post them up see what you think.
anyway here is the brake shoes and gubbins for the gunners side.
and the holes..... there are a load on the gunners side, but as all my tools were there i will get photos soon.
drivers cockpit
drivers side rear part of tub (looking from front backover)
drivers side rear part of tub (looking from the rear forwards)
and finally the rear drivers side track guard sits over the sprocket
i know holes could be drilled for any number of reasons and by anyone, just trying to figure what if anything she has been fitted with. i know she has had the radio as the rear armour plate i have left has the holes and evidence of the battery box .
just plodding on bit by bit, will get the axel clear and engine out this week, glacis plate removed and hopefully center bulkhead or whats left of it out this week.