Lionelgee, the electric vacuum pump setup is really simple
if i was running a 2.25na Diesel i would most certainly choose the electric pump over the reservoir and flap system unless i was building for originality but then it would possibly mean spending a lot of time looking for good condition bits or rebuilding/remachining to get the flap to operate correctly and create the required vacuum as i eased off the accelerator pedal
electric vacuum pumps give as good as "instantaneous" vacuum as you're likely to get plus you can have it without the engine running with just the ignition switched on and the pedal pressed :)
both my "running" 2As have 200tdi's fitted so come with the mechanical pump, my project has the 2.25p but no servo :lol2:
to be honest an 88" doesn't need a servo with 10" brakes as my bitsa would happily lift the rear axle under heavy braking , a servo is more for your own comfort with 10" brakes
although i have since fitted a dual line pedal box and servo in my bitsa plus 11" (yes eleven inch) SLS (single leading shoe) front brakes, now it'll easily lift the rear axle under heavy braking at speed with minimal effort, the worry now is which way it'll try to rotate with heavy braking :eek:
p.s.
my 109 has no servo at present but it is planned for the future along with disc brakes on the front axle
p.p.s.
i have personally driven Divies 88" as i welded on new dumb irons for him so i can definitely vouch for the electric vacuum pump working well

