Blackmore is the main guitarist that influenced me and also a lot of underated players like Mick Ralphs and others but if I had to choose just one guitarist it would be Django. If you can get hold of Django doing Dinah there are runs and ideas in it that are just genius. Django's early playing is the best I've heard for improvised music.
Django's Dinah Tab
http://www.azchords.com/r/reinhartdjango-tabs-3253/dinah-tabs-234653.html