This advice will assume a very high or unlimited budget.
Go with Storm Kick -> Crane Kick -> Storm Kick -> Crippling Axe Kick for the highest DPS. You'll need +225% recharge in Storm Kick, which is why it's going to be expensive purple sets and Luck of the Gambler globals.
Take everything from your secondary but Elude and slot them up.
Hit the soft cap (45%+ defense) to all positions, ideally something in the 46% to 48% range.
I recommend Tough and Weave. You want resistance to avoid being two-shot, and then Weave is a great way to get closer to the soft cap.
Hasten for the recharge.
Stamina to power everything.
Aid Self to keep you alive.
Uniques: Steadfast Protection, Numina, Miracle, Regenerative Tissue, Kismet, and possibly the PvP +defense and +resist IOs.
Get the hit point and endurance accolades.
Pick up as many hit point bonuses as you can (after getting 45% defense and the required level of recharge).
Possibly a Gaussian set, but I don't think I've left you any good place to put it. You could put it in Focus Chi, but I'd hate to lose the recharge. You could grab Focused Accuracy and stick it there, but I suspect it would mostly be a set mule, and losing six slots on a mule doesn't sound appealing. Well, there are certainly other ways to hit the soft cap, so I guess don't sweat the Gaussian set.
Red Fortune sets are nice. 5% recharge at 5, 2.5% ranged defense at 6.
Blessing of the Zephyr perhaps.
I like two to four Luck of the Gamblers for set bonuses since you'll be sprinkling them all over for recharge anyway.
Consider five Apocalypse in Laser Beam Eyes. It's a mule, and thus wasteful, but the set bonuses are excellent.
Five Armageddons in Dragon's Tail.
Performance Shifter proc and possibly set in Stamina.
"That's because Werner can't do maths." - BunnyAnomaly
"Four hours in, and I was no longer making mistakes, no longer detoggling. I was a machine." - Werner
Videos of Other Stupid Scrapper Tricks
I have been planning on making my second power sets powerful enough to take on AVs. However, I don't have a clue where to begin for this particular set up or MA/SR.
Could some of you give me some pointers on powers, IOs, etc to use to achieve this?
Thanks.