Well the students tried to crank the engine over and found out that the flywheel is cracked. Now they have removed the transmission and started working on the bell casing. Pain in the backside with some of the bolts in the actual casing itself. One looks like it might be stripped.
On a positive note the new master cylinder was reattached and the new lines were installed and now the brakes work.
I've also attached two new pics of the fuel line switch
