Ok before plowing through everyones PM requests, to give people an idea on cam installation, with the right tools the job will realistically take around 4-5 hours, though more if you really take things slow (understandably) as the main front cover won't need to come off
The reason I say this is the GM tool in the link below (EN-48313) is used to support the chain tensions, preventing the cam chain timing from being screwed up
http://www.ebay.com/itm/NEW-GENUINE-...11%26rk%3D1%26
For more info about the process check out the links below
Alloytec (LY7) cam swap instructions
http://www.mediafire.com/?6n1t9loadmp5hlc
LLT Cam swap instructions
http://www.mediafire.com/?auvr9v57cmcn207
Note I've also included the LY7 instructions as explains better the use of the tool as I've described, which if very likely applicable in the LLT's case as the chain and tensioner arrangements are identical
Long story short the job is smaller then people probably think, with the right tools
Hope this helps
Kindest Regards,
Steve