It would be great if you post schematic and requirements (e.g., how large temp drift could be).
While it makes sense to build a temperature chamber to compensate for temperature drift, I bet there are ways to achieve same without it. For example, people don't often cool down devices (as it is more difficult than to heat up). Instead the temperature elevate above maximum operating temperature. Again, it's almost never needed to heat up the whole device, at most you need to heat up the reference voltage (think of lm399). But even then most of the time this is not needed if right components and schematic is used.
And even if you have a chamber, it doesn't mean you'll get good accuracy. If it were so simple people would build benchtop DMMs that way. In reality you have to take into account humidity, aging, local hotspots, mechanical stress, EMI, etc.