Now'a days the technology makes whole this much simpler. Crown still makes fine equipment, but now mostly for pro market
Most AHers are typical experts in vintage audio and me neither but one thing I can tell you for sure:
Out of 3k budget, spending only 1k on speakers is a no optimal investment. You'd want to have 70-80% of your budget in speakers.
here few notes and opinions regarding your speakers:
Help with Altec Valencia
You may want to consider to upgrade them or replace all together
I'd say, keep the sources (tt and r2r) but the rest could be replaced with two pieces: pre-amp and amp: Emotiva usp-1 and this amp:
PA 2-160 Stereo Amplifier | Sherbourn Technologies - hurry - this sale will end soon
You could replace with Crown
Amazon.com: Crown XTi 1002: Musical Instruments
you should have spend the rest on speakers