New HE home system with what I have on hand

[winslow]

Looking to build a new HE system that is atleast 100 dB efficient, and to use most of (or all of) what I have on hand already.

I have:

4 PAS HT1580Cs
2 JBL 2204Hs
2 BMS 4591s
2 Fane ST5022s
4 Audax PR170M0
2 Stereo Lab 1" tractrix horns (will cut for 2" drivers).
2 BMS passive XOs
2 P.Audio PHT406 tweeters

I have straight 80 hertz horns built for the PAS 15s, but they are too large for my new apartment, and I think I sit too close to get the full effect of horn loading.

EQing can be done by my Rane RPM88.

Right now I have Edgarhorn Slimlines. I think they are really good speakers, but want to try my hand at making something better. Wood working isn't a problem.

Any ideas, suggestions?

I like horns and have wanted to try compression drivers for the midrange...but dual PR170M0s on an OB and the Fanes, with 2 15s sealed o ported could be fun too.