I'm playing around with Pro Stock racquets at the moment but am considering retail sticks too.
I am okay with going down to 6 or 7 points headlight which is where the KPS is today. Here's an example:
Take the Head MG Radical Midplus ($90 at TW). 27 inches, 11 oz, 2 pts head light, 315 swingweight. Using the TW automated customization tool, it can be modified to 12.4 oz, 10 points headlight, 345 swingweight by adding 0.16 oz at 27 inches, 0.13 oz at 26.6 inches and 1.11 oz at 0.8 inches.
It can be modified to 12.2 oz, 8 points headlight, 345 swingweight by adding 0.16 oz at 27 inches, 0.14 oz at 26.6 inches and 0.9 oz at 0.8 inches.
The Head YOUTEK Radical Midplus is 11 oz, 2 points headlight and has a SW of 324. Adding 0.14 oz at 26.8 inches, 0.07 oz at 26.4 inches and 0.99 oz at 0.8 inches would result in a static weight of 12.2 oz, 10 points headlight and a swingweight of 345.
The Babolat Pure Storm GT could be customized to 12.23 oz, 10 points headlight and 345 SW.
The Dunlop Aerogel 4D 300 could be customized to 12.1 oz, 10 points headlight, SW 345.
So there are ways to do this with retail frames. I think that it will take a little time to find what I want given the added variables of flex and strings.
The key is in finding a retail frame that's already lightweight that isn't stiff as a board - basically a frame that screams out for customization. It seems to me that the Pro Stock racquets are made this way - very light hairpin, with silicone added in the handle and lead in from 11:00 to 1:00.
One final example that I've been thinking about for a while for a super-flexible solution:
PK Redondo MP (57 RA) -> 12.31 static weight, 8 points headlight, 345 SW. Basically the flex of a PT57A at 1/3rd the price by just adding 0.21 oz of lead between 11:00 and 1:00.