Am I spending too much money?

I know the sky is the limit and one can spend countless dollars. My question involves some economy and not a limitless bank account./

After years of searching I finally have a speaker setup I like and think is a great deal unless I spend a lot more money - triple - for my listening room of 12 x 11 x 8ftceilings

GME Europa original not max and sunfire true sub mark II

I won't get into the myriad of systems I have tried over the years unless asked. But this setup is unobtrusive - sounds real both in the bass and mids and while I have had silkier mids and sharper highs they haven't been in this kind of tonal balance and clarity. So for now I am happy here.

So I wan't to get an amp/preamp/integrated amp and am considering the Mark Levinson 383. But am wondering for the same $3.5k used am I missing the point and could get a lot more bang for my buck. If the 383 at that price in my setup will be top shelf sonic nirvana and it is the minimum entry $$$ level point for top shelf then fine. I want to spend the $3.5k but If I can get BETTER perfromance from say a BAT vk-3i $1,200 used and a whatever amp at $1,500 used then I'm ahead a lot and got BETTER SOUND.

So I suppose the bottom line is for $3.5 with the speakers I have and since I like convenience a SONY-CDPM55ES player (yes - 400 disc carousel - top of the line ES. If apple is getting away with MPEG on iPods will a $1,500 used cd player be all that??? over the Sony? - OK if that is the case then a preamp / power amp / cd player combo for my speaker system at $3.5k.