Originally Posted by
matimeo
+2
I thought the same thing when I read your post. You could buy something new from bikesdirect.com and strip it down, build it back up. This would be SIGNIFICANTLY cheaper than buying all the parts separately.
For what the OP is asking, this is really the only option, as their budget is way too low to do anything as a build it yourself project unless your willing to drag it over a long time period and get very lucky with deals.
Something like this
Save Up to 60% Off Disc Brake Road Bikes - Motobecane Omni Strada PRO bang on budget and learn how to fix it/replace parts as you use it/wear stuff out (ride it and this will happen!!!)
Edit, that a Gravel bike, you could start the learing process by swaping the tires for larger volume slicks and you have a pretty good all round bike there!