Any good discounts on BC through SOC & a retailer ?
I would go 5kg/mm front & 4kg/mm rear at most, BC not cheapest but if shop about should get at £660 to £680 easy enough & if have retailer on here hopefully even better than that.
The plus with BC is they will supply custom rate springs at no extra charge, also they quite helpful with spare parts & servicing unlike lower cost options.
Cheapest & best road use option but not simplest due to needing faff around sorting custom springs is impreza strut swap.
Simplest in terms of bolt on & adjustment to requirement is coilovers but without sensible springs & setup it would be a back breaking buckaru :-S