Mechanical Keyboards has the Ducky One TKL for $85 with Cherry MX switches.
I agree—it's what I was going to suggest.
You didn't say what you considered "reasonable", but let's say below $100. Ducky is a major, well respected, long-term MK player. Sure, you could spend $20–30 less and get an off-brand MK, even one with the same switches—but it probably won't have a Ducky's solid build or dependability.
(You can pay
more than that, too—but fashionable logos aside, the differences between Ducky and brands like Varmilo and Leopold are negligible.)
The guys at MechanicalKeyboards.com are great. They're always glad to answer any question or solve any problem (though it's unlikely you'll have problems with the keebs they carry). They also offer a good choice of switches on most of the Duckys they sell.
If you're like most of us, the main reasons you want an MK are:
- Solid build (lack of movement)
In other words, a board that feels and performs the same way for a long time. So considering how long you'll use it—and spreading out the initial cost over that period (something called "amortization"), you may as well spend a bit more and get one you'll enjoy the most.