BAT Integrated Amp or keep 15 Year Old Separates??

I am considering downsizing my electronics to(possibly) a BAT integrated amp which is 150RMS and self-biasing(I don't recall the model number.) I currently have an Aragon 4000MK(200RMS and high current) and Conrad Johnson PV-8 that I have had privately modified twice for a lower noise floor and better low level detail. I have always liked these pieces but they are getting "long in the tooth" I bought them in 1988. I have not bought front-end electronics since then, but have generally kept informed about what is new, except for the tube and SET amp "craze" sweeping audio today. Need some good input about the BAT products and company. Is their integrated amps worth the money and will they be superior to my current setup?? I used to have B&W matrix3 series2 speakers, but sold them. I have been hunting for serious speakers for over two years and my budget and interest keep shrinking---my current range is $1600-2000 but prefer to stay under 2k, because I also need speaker cable. I might spring for a "used" pair of Coincident Technology's Partial EclipseMkII, but will probably settle for a pair of Quad 22L floorstanders that are $1600 retail,have been getting good reviews and I will audition this week. Other speaker possibilities are Gershman's Cameleon at $1800 or possibly a "used" pair of Audio Physic's TempoIIIi. I am prefer speakers with a slim profile or column speakers; also despite going small want a pair of cans that have some "slam" to their sound, but also are accurate with very good soundstaging. All opinions and comments welcomed!! Thank you, Jimbo