P.s I will be doing an the work my self
A couple of pointers then:
Don't bend the oil cooler pipes to access the cooler, disconnect them by the oil filter.
You might want to get hold of a set of camshaft front oil seals as these will be disturbed. They can often be re-used but you'll be stuck if you accidentally muller one.
Make sure you note the location of the cam bearing caps before you remove them. They are numbered but it's easy to forget which way round they go. They must be fitted in the original location and the same way round as they were originally. It's good practice to oil the cam bearing journals just to protect them during the initial start-up as they will end up dry. Doing one cam at a time helps keep everything in order.
Use a little green sealant on the mating faces of the front cam bearing cap as they bolt down to the head but don't block the oilways.
It might be worth taking eack hydraulic lifter out and cleaning it
http://www.omegaowners.com/forum/YaBB.pl?num=1163080380 seeing as they'll be accessible with the cams out.
I'd give yourself a clear day to do the job. You don't want to have to rush it.
Kevin