how long is a piece of string?
depends on materials, dimensions, fittings, build quality etc
take a look at the online specs. for wooden stables and cost the materials locally
dont forget its not just timber/roof tresses/roofing materials/doors/door fittings you need to include bolts,nails, the lot
it might be a good idea to see if any of the sectional stable suppliers are selling off 'show room' or used stock, also sometimes second hand wooden sectional stabling sometimes comes up on eBAy
eta, also, it might be best to get a mobile stable, then you can take it more easily if you leave.
otherwise...dont forget foundations, they cost a bomb
water supply, electricity....? will you be paying to have these laid on?