Baggage compt to tail cone door
Not advisable. Besides the very real structural integrity issue, the tailcone behind the baggage bulkhead is a congested area in most 10s. Besides the battery (maybe 2), elevator bellcranks, pitch servos, seat belts, and brace that cuts up the middle, it is a great place for remotely mounted transponders, ADS-B, magnetometers, radios, ELTs, auto trim modules, etc.
Not to mention weight and balance issues.
RV-10 and Breezy