Originally Posted by Eivind E

OS engines glow plug wrench (it's the best one because it grips the plug)

I completely agree. I love that plug wrench. The only problem with it is the T handle is kind of small which can make it quite painful to remove a tight plug. Fortunately a friend modified mine with a larger and longer rod.

Hudy ultimate engine tools, for removing and installing bearings.

It's a great tool but a newb could easily skip this for a while.

Ladies tweezer of good quality, for removing/installing G-clips for the piston pin

I dug through a Snap-On truck to find just the right pair of tiny needle nose pliers that works wonders on those damn little clips.

hex bits set and Bestool Kanon 20LTDK torque screw driver

I've never used a torque screwdriver and don't see why it's needed but could be nice to have.

Set of digital calipers, Hobbyking sell a good digital caliper for almost nothing, needed to measure crank pin and con rod wear

A cheap micrometer would be better but calipers are a must for many other things.

Large number of stamps and envelopes, so you can send your P/S/R sets to RayAracing for resizing when you've run out of pinch

You got that right.

I think that covers it.