Putting the front end on ramps or jackstands made the job a lot easier for me. I used a ratchet set and extensions, and open end/box wrenches.

If I remember right, all three components (AC, PS pump, Alt) have three bolts to loosen then you loosen the adjuster/tensioner bolt and you can watch the component move and the belt become loose. You just have to look for all three bolts on each component or it won't move when you try to loosen the adjuster/tensioner bolt.

Not hard, just time consuming.

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1985 300TD-euro 352,000 mi
1974 240D (1?)52,000 mi - has a new home now