Need help with Integrated vs preamp/amp

Hi, I am new here and back into audio. I moved into a condo awhile back and sold all my higher end stuff and bought a Denon AV received with KEF surrounds and that was my system. I did keep my Legacy Classic speakers in hopes of one day rekindling my obsession.

So here I am starting again.

I have been doing somer research and have always been interested in the Acurus and Aragon stuff. I am thinking about a used DIA 100 mk2 integrated amp in the $350 range. Then I started looking at a RL 10 preamp with an A150 or A250 amp that I would have reworked with Ken Ealey. That looks like it will cost me around $1400. Then I thought I am going to need a DAC anyways, so why not look at the NAD C375 BEE with optional DAC. Used I can find this around $900. There is my dilemma. I'll be honest, the $1400 is a bit more than I want to spend right now, but I can do that in stages, buying the preamp and amp before mods is around $550-$650 which is more reasonable.

Any help would be greatly appreciated.