Jam track for Rick Estrin's Take It Slow

Hi David

I have spent now a number hours on the internet (i.e. Youtube) to find a backing track which nicely woud fit to Rick Estrin's marvellous instrumental Take It Slow (https://www.youtube.com/watch?v=gVIJo20cDYk). I found many slow blues backing tracks but none of them seem to nicely fit. Wouls you be able to give me a hint how/where to find this?

Ideal would be to find the backing track of this instrumental itself without the harmonica playing.... 

Thanks much in advance

Joris