Use feeding tongs, & if needed, use a cardboard box lid (for example) to block him from biting you. This is a BP, not a charging rhinoceros. Get some 18" non-locking hemostats, or use some long, blunt ended BBQ tongs. Yes, you can wait a little while until he calms down & loses interest, but the delay makes it more likely he'll lose interest in food too.
"Have I ever done this?" Yes, for many many years & keeping many kinds & sizes of snakes, lol. And I don't like bites any more than you do. I also practice the "art of distraction" pretty well- if he's following your motion, let him follow the hand that's not doing the retrieving. This is a matter of practice & experience, trust me I'm not trying to get you "eaten" by a BP, lol. Estimate his "reach"- a little more than half a snake's body length, & stay out of his reach. Or put something between him & your reaching hand. Multiple ways to do this- you'll get this.
If you think this guy is challenging, you should have met my 7.5' boa (BCI) at meal time. I had trouble opening her enclosure to get the food in- she always KNEW when food was on the way, & she was "loaded for bear" & aiming at me the whole time.