I can't advise you on pricing but I will suggest that you look for reviews on this before you buy it. I bought one of those for a friend of mine a couple of years back. It had some bad components, mainly the failure-prone 2SC458 small signal transistors.
After I got it going, it went to him. He really didn't like it and wound up selling it soon after. The 24 seems to have a reputation of being OK but not in the same league as other Marantz components of the early-mid 1970s.
For about the same money, you can buy a 2230 that will have a better tuner, an equal or better preamp, and a nice 30+ WPC power amp. I've used a 2230 as a preamp into a big power amp and it works well that way. Just be sure that you check that any 2230 or other Marantz 22xx receiver you may buy for this has preamp out and power amp in jacks. I think some 2230s and 1060 amps didn't have them, most did.
Those are just my thoughts and they're worth what you paid for them. I'd suggest that you listen to it and see if you like it. If so, buy it!