>>1666603I would go for it. The one thing to consider is if the headtube is really high enough for you.
Road bikes come in 2 flavours, race bikes, and endurance bikes. Endurance bikes are designed for boomers and have taller headtubes and so accomodate higher bar positions. They're basically the comfier versions of road bikes.
A Gravel bike is an extension of that low saddle-bar drop. CX bikes typically are not. They are more like race road bikes, designed with minimal saddle-bar drop and aero positions in mind.
You're probably thinking of the wide tires, sure, but your body position will impact your bike being comfier more.
It depends heavily on the bike itself, and your body though. What I would suggest you do, is say you're close to buying it (you are) but ask them to help you set up a correct saddle height, and then see how easily you can setup the bars to have the tops of them only 10cm, or less, lower than your saddle. That would be, to me, a comfy fit. If that requires a high angled stem, or a lot of spaces, I think you'd be better off with a different bike with a taller headtube.