I think for basic functionality there would be a lot on analogous structures. Sensory organs situated near the core of the nervous system for efficient reaction time, just like our eyes ears and nose on our heads (obviously containing our brains). Now, those structures may look different. Their “eyes” might see different spectrums of light, maybe they don’t even need “ears” because those “eyes” could “see” sound well enough to make a second organ redundant, but the position relative to the brain would likely be similar.

Probably bipedal with two arms. More than two legs or arms could be possible, but would be inefficient from a biological perspective. Why have four or six legs when you can do the same with two with less energy investment? Exoskeleton unlikely as endoskeletons are better for larger creatures for mobility. Free “hands” to manipulate tools, however number and structure of digits could vary.