1) No, you can't search for higher than 999 in RNG Reporter. Use Wichu's program in the 2nd post of this thread for that.
2) Get more rare candies or try all the IV Combination until you get one that works (Check the time and delay to confirm if its a possibility). I could not get the exact ivs either. I just used enough candies (3-5) until I had only a few IV combinations left and entered all of them until I got the seed I hit.
Thanks for the reply. Does the seed finder work for method 1 pokemon? I tried all the combinations but nothing was found. However, I caught a wild Rattata and discovered that I hit 1128 delay, 1 second. (I want 1154, 1.) I'll try to play around with my calibrated delay and see if I can fix this.
EDIT: I'm getting extremely close now so I'm sure I'll hit my delay soon. :)
Maybe this has been said before, but a word of advice to everyone: make sure you save with your radio already detuned. I didn't realize this before, but the game saves the radio's position and it will mess up your frame if it's on a station.