Ellie, What you are asking is similar to exchanging your car's engine for a larger and more powerful one, and, oh yeah, while we're in there go ahead and swap the standard transmission for an automatic. Yes, it can be done, but the parts and labor would probably cost more than what your car cost in the first place. It's the same concept for swapping the integrated electric dryer components in your unitized system to convert it into a gas-powered system. But unlike with your car, I'm not sure whether such major surgery on a washer/dryer unit is even possible -- or legal.

If you honestly prefer the gas-dryer version of this integrated washer/dryer unified system, you would be better off buying a brand new gas version of the entire integrated system, and then selling the electric version on CraigsList, eBay, or whatever. Just be aware that your integrated W/D weighs 241 pounds without a drop of water in it.

Neither the owner's manual nor the installation instructions list the wattage consumed by the all-electric version of this W/D unit. However, the installation instructions do cite the electrical requirements as follows:
"This appliance must be connected to an individual branch circuit, protected by the required time-delay fuses or circuit breakers. A four or three-wire, single phase, 120/240V or 120/208V, 60Hz, 30 amp circuit is required."
All properly grounded, of course.

I'm not a gamer, so I cannot provide a definitive answer. I can only say that the Logitech K750 is sufficiently fast so as to satisfy any normal keyboard user in the real world. Though it is durable, I don't think I would recommend this keyboard for a traveling road show. It is full-sized, and has no bank of 'gaming' keys, and also relies on reasonable ambient light for power. For travel, Logitech model K800 is a reduced-size keyboard that might be more appropriate for a road trip. The K800 is not solar-powered, however, and instead uses widely available replaceable batteries. I nearly bought the smaller K800, but since I did not intend to travel with it, the K750 solar model was the best choice for me.

Depends on whether your Soul has a standard-sized stereo head unit or a Kia-branded OEM unit. If standard, then you should have no problem with making the swap. If non-standard, it may require an add-on faceplate surround to achieve a decent finished appearance. If you ask your local Best Buy stereo installer crew (no, I'm not on their payroll), they can give you a specific answer after just a single quick glance at your car's dash. Good luck.