The double album “Horn Rock and Funky Guitar Grooves 1968-1974” is currently available from Ace Records via their Amazon marketplace outlet for just £4 plus £1.26 p+p. As opposed to 18 quid on their own site.
It’s great, especially disc 2.
https://www.amazon.co.uk/Horn-Funky-Guitar-Grooves-1968-1974/dp/B07SWKBRBV