How to get the battery tray out?

[A Paratroopers 300zx]

As the title states... How would I go about removing the battery tray? It is spot welded to the inner fender lining and does not want to budge. I can see two ways of doing this, but I'm open to suggestions. One: drilling through all spot welds. Two: cutting it out with a cut-off wheel. Are there any other easier ways of removing this PITA? Oh, and I am posting this in both the General section, as well as, the Tech section to stimulate more answers.

[Ozzie]

If you drill out the spot welds, make sure you cover the exposed metal of the body/frame straight away with anti rust paint, or some other sealant.

Is there enough room to work with a grinder w/cut-off wheel in there?

If it were me, I'd drill it out
Tips for spot weld removal

[marty1mc]

You may want to try a dremel with a cut wheel. It is much smaller than a regular cut wheel and will do less damage.

ETA: Sorry, too damn early. I just re-read and saw the spot weld comments. Agree with above, about the only way is to drill them out.