some idea rebuild cost uk

ok i am now a bit cheesed off, just replaced cam chain, cam & bearings/rocker bearings total cost £200 quid. yes the chain was goosed the cam very light pick up marks but still usable. all back together starts ok but still sounds bad .all adjusted up correct I am thinking it could be a bearing on its way out? "has any one done a rebuild of late" if so at wot cost and wot was replaced.
not sure i like these 4strokes never had all this with the old 2smoke
:cry: :cry:

to start a the beginning on an oil change i had a bit of alloy shinny bits in my steel filter and a rattle on engine so i removed the cam tensioner to check it it was maxed out, so i replaced the chain.The cam had some light marks on it so when i went for my chain i showed the mechanic my cylinder head /rocker bearings-he suggested that they would need replacing and as such the cam as well i agreed but needed to be told as i dont pretend to be up to speed on 4strokes!all rebuilt all checked double checked started no probes still noise
it sounds rattley/rummbley > louder on clutch side,thats why i thought it was camchain. also i was getting a bit of metal on the sump magnet/ /not had any alloy after chain replaced but still had a little on sump magnet /haven't run or droped the oil after cam replaced.
i have heard a newish bike and it sounds sweet compered to my motor and i dont want to cause major damage if something is on its way out but i am a bit pissed as i have only done about 30hrs max on the bike since i bought it and its been one thing after another but this time it not just time but big money and i have hardly given it any stick at all as i have just been getting used to riding 500 4stroke when the only crossers i have had 250 and it is a massive difference in riding technique.just thought if i do a full rebuild then i know were i stand motor wise!

bet ur sorry u asked now :wink: