Nice one on the lesson man!
Keep it up - And make monies for more BKPs...
But yeah, I pay £20 for my lessons although I think he asked for less (my dad's used to paying £50 for piano lessons, so he thought 16 was too little...). They're with a guy called Nick Michaelson here in North London, he's guitar in a band called Senser, and a thoroughly nice guy.
He knows his theory, which I find damn confusing for the most part.
And best of all - He has BKPs (although I think he got them by accident since they came in a Black Machine he bought.... The telecaster in the gallery on the website with the fully scalloped neck :p).