Blues Backing Tracks

I need the best bluess guitar u can get for $1550-. I was thinking about an SRV strat but i'm not sure

I have had 4 years experience with guitar and i really want to know how to play in the blues syle. Like Eric Clapton or B.B king. Are their certain scales or chords i need to know? Thanks!

i need someone to give a a good, easy blues guitar riff.plaese reply with tabs