Seeking Constructive Equipment Ideas

Mid 80's I had an NAD 2200 and NAD 1240 preamp driving a pair of MG1 Maggies.  Yep, first model.  Had the setup for years. The Maggies eventually got sold due to new lifestyle (marriage). Bought a pair of Energy RC10 bookshelves 15 years ago (relegated to smaller space) and the 2200 finally quit. Replaced it with an old Adcom 535ll. Still using that NAD 1240 38 years later (with one service).

Anyways that's the backstory.  So my listening will be confined to a 12x12 bedroom in our new house. I have a Technics 1200 GR table and Rotel Tribute CD player. Thinking it's time to spend some money and looking at the Wharfdale Lintons or similar and now looking at preamp and amps. I can drop around 5K excluding speakers. I was looking at the Benchmark preamps and amps but thinking that for my limited space it's probably overkill. So I started thinking maybe an integrated is all I need? Fact of the matter is a good deal of my listening is probably going to be through headphones of which I have a pair of Senn 600 but have ability to do splurge on 1K pair as well at some point. I have already looked at some headphone amps. Most of my listening is LP or CD but also have a large Dead FLAC collection and other music files.

So just looking for some opinions on integrated and if that's sufficient for my needs and some makes. Checked out the Peachtree Nova 300 as it looked like it would do fine with the Lintons but have no idea what Class D sounds like and if I should bother or stick with an A/B. Or if I should also consider different smaller speakers.

Thanks in advance for comments.