Be sure to ask questions here for a good evaluation while modeling.

Kerfing? Not in the sense of calculation "setup sheets". But there are tools to use on a more home level. So you can model a 90° then fillet to represent a bend then "uwrapcurve" to get the length of the 2 sides with the fillet.

But actual kerfing as in sheetmetal calcs when bending various types and thicknesses, you will need more specialized "sheetmetal" software for that...

And a hint for exporting is, the export command works on "selected objects". So a full assembly scene, with all components, just select 2d plan objects and export, only those.