what jimmy says sounds about the right price for a normal build mate, also what i would say is take off your head and inspect the bores first as if one is fucked or the bores are lipped too much u will need a rebore an poss new pistons, which will be a huge lump of money an maybe best just to buy a good bottom end as jimmy says, i only originally took my engine apart for a bit of a freshen up as it was slightly low on compression on bores 2/3 and have ended up replacing pretty much everything, the only things still left from when i started is the crank and rods, i guesstimate that its cost me around 1k to build myself as i said u need to kno the extent of the damage 1st, if i can help in any way just send us a pm im always on here