How about F20 gear up and 160Kts dialled up. At 5nm drop the gear, wind the speed back and F30 at 4nm? The speed runs back and you're in the slot by 1000' - just.
F25 landing on a 757 - I'm interested to hear that it handles better in gusty conditions. F30 always seemed fine to me and is our SOP anyway. At typical landing weights and vref+20, the speed is comfortably below 162Kts. However there will be slightly less ground effect with F25 and less of a tendency to stay in the air after the flare. F25 is useful sometimes as an interim flap setting when the speed isn't coming off (flaps as brakes - surely not).
It's better to avoid having the flap load relief activate. In the 757 F30-F25 destabilises a little but in a 763 F30-F20 will greatly change pitch and thrust and this will all happen around 1000' and then the speed reduces and another destabilisation as landing flap comes out again - not good and particularly not in gusty conditions when the requirements of a stable approach are still there.