Boxster S (986) Rough Engine Rebuild Cost

[SarlechS]

Hi Guys,

just looking for a bit of advice really, i'm interested in purchasing a Boxster S off a friend, it's a face lift non runner/starter.

does anybody know roughly how much it costs (on average) to rebuild an engine from a reputable company?

i know it varies on exactly what needs to be replaced but i'm just looking for best and worst case scenario. i've had a look on the net and i can't find much on there. there's 3.2S engines on ebay going between 3-5k.

i'd be very grateful if anybody could help or point me in the right direction

thanks in advance.