I wouldn’t say ’it’s easy’ to get a great preamp under a grand, however, I’ve had that challenge before and it can be a lot of fun. There’s a lot of very very good stuff, especially vintage stuff, that you can really enjoy chasing down. Make sure to get good, competitive pricing on whatever you choose so that if it doesn’t work out you can at least get your money back- or most of it, moving it along so the next guy who needs $1,000 preamp.
And if I could add, when you're dealing with that kind of budget, I myself would keep it solid state because it'll be a lot easier to get something that works right out of the box now and going forward without having to dik around with tubes, which are lovely, but it's all a crapshoot without really good tubes.