Worth purchasing Accuphase P-300, C-200 and T-100?

Those are early Accuphase components when they were made by Kensonic labs.  I would look for a bit more recent second hand Accuphase. 

You should in my mind also look at some Chord amps from the UK. It’s what Abbey Road Studios use and they know a thing or two about yur kind of music.

Interesting, not dynamic. Would say my listing is more grunge, with a double side of blues. Might like what I have more, maybe should keep saving up for McIntosh. 

I used to own P-300, C-200 combo in the ‘80s. Fond memories, driving IMF transmission lines. You’ll get a very clean, not overly dynamic sound with good soundstaging. If you are into classical or jazz: go for it, if into house and grunge rock: look elsewhere.