Yeah that's what I'll be probably go for anyway, seeing as also Crane and Comp say that's maybe the best direction to head for. But neither Crane nor Comp would give me maximum CRs for their cams. They just say "not under 8.4:1" and the longer the cam the higher the CR they give.
Now here's another thing to consider. Here in Germany you can easily get 100 Octane fuel for marginally more money than normal gas. And I will be installing a Butane-system, Butane has about 105 octane. What's the highest CR you think I could run on 100 octane? I only need the gas (meaning petrol fuel, not the Butane, which is a real gas) to start the engine, but once it's warm i can switch to Butane and run on 105 octane (costs half the price of regular gas here). So I guess I could go quite a bit higher on the CR? The setup I am aiming for is:

rotating assembly, converter and block stock
pistons flat top (2 relief) hyper
thin head gasket
58cc high swirl heads with good chamber (polished to oppose detonation, will make it 60cc)
under 170cc intake runner for high velocity
Edlebrock Performer (NOT RPM) intake
Edelbrock 600cfm spread bore carb
headers 1 5/8 tubing into 2.5 inch dual exhaust with H-tube
1.6 roller rockers for higher lift on a probably short cam

This combination should be good for low end torque, shouldn't it? But there's always the question: What can I do to make it even better? I need a cam that will give me optimum performance for a daily driver, I have an OD transmission (TH700-R4, B&M reinforced) and will put in longer gears (probably 3.0:1, got 3.73 at the moment). That's as close a guess I can make at the moment and it's the first motor i'm going to really plan and build myself. I've done some rebuilds, but that's not the same, this time I want to build an engine to fit the car it's going to go in. Many people just want as much power as possible, but that's not my plan on this project, this time it's going to be a custom fit power cell to shift that heavy load of Detroit wonder metal
Are there any cams you could specifically recommend? Or has anyone found a combination that works really well in his heavy vehicle?
Would appreciate any info on "Do's" as well as "Dont's"
THX!