We made all our AG stuff from scratch apart from the bruheat boiler which was about £63 our mash tun is a 5 gallon fv wrapped in the silver reflective stuff you put behind radiators then we wrapped 3 layers of bubble wrap around and taped. When we mash we wrap the mash tun in an old quilt. When you have the tun and boiler your almost there just a fv and a few bits to buy :
My boiler is a 60litre plastic FV, two kettle elements and a ball valve tap and some copper pipe for hop filter - cost approx 50quid, my tun is a 30litre coolbox with another tap and copper pipe for the filter - cost approx 50quid as well, leftover copper pipe and t`s and elbows sufficent to build another filter.
I built MY BREWERY for less than £100. HLT is an old FV with kettle element inserted. Boiler was purchased from EBay at a bargain price. Mash Tun is a converted Asda Cool Box. You could do if for half that im sure. When buying things like taps/pipe fittings etc dont use B&Q there expensive go to Buildbase or the like. Much cheaper.