Unless literally all your things are high-end, rare, or equally sentimentally valuable, this is 100% the way to go, imo.
I just furnished a little place; in my area anyway, most 2nd-hand sellers are asking for and getting at least 2/3rds what they paid (even for Ikea stuff, which, wow, really, sticker price for a broken Billy? But yup they're getting it!), so you definitely won't lose out. And as far as I can tell, most of the mid-range design that's out there is pretty similar and pretty decent (mid-century inspired for the most part) -- it's not like the world's full of ugly couches to avoid -- and most places that sell furniture are now "life design" stores, with everything from beds to dishes. Since you know what you like, you could set yourself up with basic stuff to sit, eat, work and sleep on in literally a weekend, and add the little touches over time.
(though I should say there are still some amazing deals to be had if you're minded that way and have time on weekends. the secret is to leave the city -- i've found a few vintage pieces i think are beautiful (real wood, proper construction) for peanuts at auctions in little towns a few hours out. the people wanting & getting their money back on busted ikea are in the city.)
Congratulations on the job 🙂