More (most) recent-era Squiers are to Fender specs so far as I'm aware, where older ones tend to be narrower but inconsistent over different model, but even then you could make it work with some adjustment to the neck pocket or the neck itself if you're handy like that. I would adjust the pocket itself if the neck has a decent Warmoth/Fender spec. When in doubt get the caliper out and measure the thing (and don't forget depth). Also, many Squier bodies can be thinner overall than Fender spec.
For my part I think Squier makes some fine guitars, but don't really tick my boxes as far a mod platform. Less than $50 for a body is fine just understand that you could be dealing with a 5 piece of whatever wood and have to do some redrilling, a given pickguard or whatever may not be an ideal fit, little things like that.