The "standard" sensor package is found on page 105 of Arsenal (for vehicles). It is by no means the only way to configure a vehicle/drone. To upgrade you basically rip out all the junk sensors Wuxing sold you and replace them. The Crimsion Samurai is a large drone so it has 8 capacity for sensors. You buy 2 R6 cameras (600 each), upgrade those with vision ehnacements like Magnification, Thermographic, Low Light, Smartlink, etc. a Laser Range Finder (100), Olfactory Sensor R6 (3,000), Omni directional Microphone R6 (100), Motion Sensor (50), MAD Scanner R3, and a Directional Microphone (50). This gives you sensors with Rating 6, 6, -, 6, 6, -, 3, - which averages to 27/5 = 5.2 which would give your vehicle sensor 6. You could omit the olfactory sensor if you didn't mind losing your sense of smell every time you jumped into the drone, just replace it with an R6 sensor or a sensor with no rating and you'll be fine. Modifying sensors is a Hardware + Logic (8, 1 hour) extended test.
The Sensor package rating should be used for most situations and is equal to the average rating of all the sensors in a package (rounded up).
About sniffer i just have a question : it's just to analyze traffic and is totally useless to find nodes (like for example a drone) to jump into ? That's only a "scan" result right ?
Edit : about Intuition vs Logic, i don't know on that one, as Logic is used for, like, all skills but Intuition is used for response...
Sniffer is used to intercept wireless traffic and to mess with things like camera networks. To Intercept Traffic you have to have an icon in all nodes the traffic moves through so its not useful for finding hidden nodes, and capture wireless signal just makes a copy of the wireless signal for yourself, while it may indicate the presence of a node in hidden mode it doesn't help you find it either. Scan is used for the Detect Hidden Node icon and will find the nodes of combat drones running in hidden mode. Both are good programs but I'd prioritize Scan over Sniffer for hijacking enemy drones.
Logic SAYS its used for hacking skills but it lies to you. It is a lying liar stat. A Logic 1 troll with Hacking 4 is an equally competent hacker as one with logic 5 and Hacking 4. The only thing logic is actually used for is Hardware, and sometimes Software, everything else is Program + Skill and leaves logic out of it.