If your were to assemble a vintage system ?

Already have in the amplifier realm. A mint Pioneer SA-8800 for $450. Also have a Pioneer M-72/C-72 that together ran $850 and a restored Pioneer SX-3800 for $350.

I am in the process of recreating my first real stereo system (to the greatest extent possible). A Sansui 5000X receiver with 60 strong watts per channel, a Thorens TD-160 turntable, a Teac RTR, (original was a 4010-SL, went with an A-4300SX this go-round). Original speakers were Pioneer CS-88As, trying to pick up a pair this weekend, but will also use a pair of Genesis Physics Model 1s and a pair of EPI 100Vs. Cheating a little by using an Adcom GCD-700 run through an MSB Link III DAC. You would be surprised how good the sound is with the Genesis speakers - very tube-like and involving. Definitely not a high-res rig, but the enjoyment factor is through the roof due to the time-traveling sensation. And the components' appearance puts many of today's black boxes to shame.

What I owned in about 1976 I would clearly buy again:

advent 300 receiver $270
rogers LS3/5a- $595
B&O turntable (not the linear tracking) $375

then since you can split the advent as a preamp, add a used EL34 tube amp.  I had a marantz 8 that I paid $225 for, or you could find a dynaco ST70 for a similar price, or a Conrad Johnson MV45 for a bit more money.

total cost ~$1500

Maggie MMG....plenty of used pairs around after the introduction of the .7 and LRS.   

Musical Fidelity A3.2 Integrated amp.  110wpc of high current, but smooth power, and an excellent phono stage.

AR-ES1 TT with an Ortofon or AT cartridge.

Used cables.

I suggest a Pioneer receiver that has been refurbished.  Modern caps a d transistors do a wonderful job of elevating these units, as well as prolonging their life. Then some bigger Klipsch or AR speakers.  Preferably with "modded" crossovers and some internal bracing/damping. A Denon DP35f with a modern AT cart. Add a Raspberry Pi streamer/dac setup a d you'll be happy! Ask me how I know......