awesome congrats!!!!!! yea i would go single ended all the way. those are not push pull speakers. but the right push pull would sound good also, i just think you have the perfect speaker for SET's so why not run them. you need to get out to hear some amps.
paul is liking the allnic 5000 dht monos. i think you also need the monos to keep the full range sound your looking for. did you check out the raven spirits? sweet amps for sure and list well under the allnic monos.
what about just a simple 8w sophia electric monos?? inexpensive, resale is pretty good if you dont like them, and i believe sophia does a 15 day home trial, no questions asked return policy. dont let the 8w fool you they are super dynamic when put on the right speaker. and have great bass and all the rest 300b's are known for. also you might want to try some 845 amps that give you a little more power than 300b's. my heart is with 300b's but you may prefer something different.