metro mg turbo in a mini

[oldboyracer64]

hi i have but a lot of metro engines into minis but never a turbo engine. i would like to run with out the turbo would this rise any problems. also i have been told that if you change the final drive the speedo will be ok if this is so what and where is the final drive

[oldboyracer64]

hi i dont have the turbo just the block and gearbox unit so basicly ti should run like a standard 1275 metro?
if so that will be fine as the 1293 that is in at the mo. is so lumpy at tick over due to having a fast road cam in it and because it is for my son (new driver) i need a soomth runner.
as soon as the engine is out it will be up for sale
it is a 1293cc
recon. gearbox
en40r crank 40/40
fast road cam
s head
new oil pump
and has just past an mot how much should i be asking for the engine gearbox unit