Don't forget that any living parts will need some sort of support system.
Blood supply, sugar and oxygen for energy, material to repair or replace cells, something that takes away waste carbon dioxide, other metabolic waste. Then, you'll need an interface to any nerves in the living parts, to give instructions, or get feedback, like a sense of touch, maybe even smell or taste, not to mention various chemosensors. Glands to generate hormones, an immune system.
All-in-all, not trivial. There is an excellent chance you'll need a different systems design for each different set of living parts, so requirements are met, and the interface is correct.
Skin is the most obvious organ, for its sensory possibilities and socialisation. If the skin is done right, you get hair with it. If the skin extends to an accurate mouth and nasal system, you can get taste and smell. Messing with organic eyes, except for a Terminator-like fake, is iffy, as the optic nerve is effectively an extension of an organic brain.
With that much skin you'll need some way of oxygenating it; what is the lung equivalent? Then there is the question of how much of a digestive system is desirable, and how you feed the living parts. Whether there is oxygen storage and/or food storage. Whether the living parts are supposed to smell like a human.
Reproductive organs might really complicate things. Whoes DNA do you use?
The ultimate version is a totally human body, except for an upper brain, which is inorganic, possibly running on sugar and oxygen for a power supply. In theory a relative of the Julian Friez Machine could make you one of these bodies.
--
"It is the business of the future to be dangerous" - Hawkwind
Blood supply, sugar and oxygen for energy, material to repair or replace cells, something that takes away waste carbon dioxide, other metabolic waste. Then, you'll need an interface to any nerves in the living parts, to give instructions, or get feedback, like a sense of touch, maybe even smell or taste, not to mention various chemosensors. Glands to generate hormones, an immune system.
All-in-all, not trivial. There is an excellent chance you'll need a different systems design for each different set of living parts, so requirements are met, and the interface is correct.
Skin is the most obvious organ, for its sensory possibilities and socialisation. If the skin is done right, you get hair with it. If the skin extends to an accurate mouth and nasal system, you can get taste and smell. Messing with organic eyes, except for a Terminator-like fake, is iffy, as the optic nerve is effectively an extension of an organic brain.
With that much skin you'll need some way of oxygenating it; what is the lung equivalent? Then there is the question of how much of a digestive system is desirable, and how you feed the living parts. Whether there is oxygen storage and/or food storage. Whether the living parts are supposed to smell like a human.
Reproductive organs might really complicate things. Whoes DNA do you use?
The ultimate version is a totally human body, except for an upper brain, which is inorganic, possibly running on sugar and oxygen for a power supply. In theory a relative of the Julian Friez Machine could make you one of these bodies.
--
"It is the business of the future to be dangerous" - Hawkwind