Ed, I'm glad to see that one of our members grabbed these! I was really tempted to make the 5-6 hour drive (each way) myself. Did you find out about them being for sale from my thread here? Do they have the "newer dual EQ" style crossovers (with h.f. compensation)? If so, IMHO those crossovers are phenomenal passive crossovers! Looking forward to some pics. As far as I'm concerned, if they're in good working order, $900 is a great price even for just the 604's and crossovers--the cabs (if well built) are a nice bonus! Of course, I'm a sucker for just about any vintage Altecs that have Mantarays and Tangerines!