I'd like to invest in some new tackle that will allow me to adjust these 2 controls while in a good stiff breeze. Currently the cunningham looks like this

2:1? There is an eye strap in the upper left corner, a ss cleat on the mast in the upper right, and a small "cheek"? block (white) in the lower right. No chance to adjust, even in moderate wind. I'd like to add another block where the current cleat is on the mast and then run the control back to the cockpit where I could use anytype of cleat I wanted.
The outhaul eases just fine, but flattening the sail when you need to (higher winds) is impossible. The cleats are horrible. If there's been a load applied they do not like to let go, and some are even bending under the loads.
Few questions:
1. cleat selections. Needs to be something that I can mount on the boom or on the deck that releases with ease, no matter the load.
2. blocks. Having a smaller boat, I don't need rockstar big money stuff, just things that work, for a decent price. My outhaul is "in-boom" so increasing the purchase on that will take some thinking. What do you suggest?
3. Outhaul is currently wire spliced to rope before exiting the boom. Would it be wise to just buy a strong lightweight line to replace it? I also use this attachment to raise and lower the mast, so a safety factor in line size would be a good idea.