Spendor SP100R2 still a relevant speaker?

Simple.

Listen to both.

Buy the one you prefer.

One man's opinion on this means nothing to you.

You have your ears and he doesn't

What do you mean by relevant? The Spendor classic 100 is still in their line up!

Classic loudspeakers – Spendor (spendoraudio.com)

Yes, very much so.  Many people prefer either the Mk1 or the Mk2 to the Classic 100, as there have been subtle shifts to its voicing over time.  If it's a good deal and appears in good condition I would pounce.

Thank you everyone.  They are a good deal with stands, same price as the Tannoy actually.

I'm seriously giving it thought, it's a four hour drive, so I guess if I listened and didn't like them it's not too bad.  

I owned the SP100's for years and enjoyed them greatly. They sound good (though different) with amplifier and cable changes, but always truthful and enjoyable. I don't think you'd be disappointed. By the way, they're heavy!