I'm guessing you already have various sockets? If not, when you need a specific size buy only 6 point sockets, particularly the sizes we use most (10mm, 12mm, 14mm, 17mm) normal and deep in 3/8th drive, plus wobble extensions and strraight extension, 2.00",3.00", 4.00" 10.00" ,impact sockets are thicker walled so last longer, but you cant use them to get at cylinder head nuts, get cheap 1/2" impact set for the larger stuff, axles etc. There isnt anything wrong with the Harbour Freight timing light at around $20.00, inductive clamp type (its not like your using it in a shop environment, but even there, the 'expensive' ones break and you cant get repair parts)
A 1/2 inch air gun is very useful if you have a compressor, air ratchets are a waste of money IMHO
An Amp Meter is very useful for charging problems, frequently checking voltage isnt enough, no need for an expensive one, Pep-Boys or similar for less than $20.00, and you could probably find an oil pressure gauge for Import with metric adaptors, although I've rarely used one ( sometimes its too scary to see how low pressure a good system runs

)
Its suprising just how little you actually need to work on these things.
Unless your a tool snob, buy what works.
You can use rear axle as rotor puller on most honda's, only special tool is the clutch nut peg socket, but thats available aftermarket ( K&L Supplies)
In a shop environment , customers expect to see certain things so a big tool box is expected ( due to TV)
$100,000 worth of Snap-On may look impressive but isnt necessary,
But, like the signature says
'eighteen grand and eighteen miles doesnt make you a biker'
lot of expensive tools dont make you a technician.
PJ