I find it hard to judge 'minimal grind'. But I'd say the two most important things to improve are thrusters and shields.
I'd go dirty drags on the thrusters of course, and thermal on the shields, with whichever experimental you find most appealing.
Here's a slightly different version of your ship with just a few changes.
A ship builder, outfitting and comparison tool for Elite Dangerous
coriolis.io
G5 Dirty Drags
Thermal Resist Shields with Fast Charge
A-rated FSD
D-Rated Sensors
Replace armor with HD stock bulkheads
Obviously there is plenty more you can do, but these changes give you usable jump range and vastly improve the speed and agility of the Vulture, maximizing it's best attribute
This is my Vulture
Arclight
The shields are incredibly elastic, so much so that they never collapse in PvE despite the fact I like to ram things with it. Anyway, just another build if you're interested.