So scouts are already needed, they already work as taxi, but they have no profession i think that is not fair and my suggestion is to fix this unfairness. 
No further intros, so i begin:
Scout profession level 1. (cost 1500 caps to learn). Requires 90% outdoorsman 6 endurance 5 intelligence to learn the profession. When you learn first level you also get Scout book.
Teachers:
Metzger in Den, will teach you for free if you are slaver. 
Sergeant Stark in VC correction center.
NCR ranger Elise in NCR of course.
All caravan leaders from HUB.
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Craftable items           Materials needed to craft                                  Also Need     Details
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Rubber boots        1x fiber 1x gecko pelt 1x rubber doll and Scout Book     Workbench    Rubber dolls could be bought from Miss kitty in New reno for 20 caps each.      
Motion sensor       3x Electronic parts 3x metal parts                         Workbench          ----
Geiger counter     3x Electronic parts  2x Junk 1x metal parts            Workbench          ----
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Scout profession level 2. (cost 3000 caps to learn). Requires 130% outdoorsman 7 endurance 6 intelligence to learn the profession.
Teachers:
Metzger in Den, will teach you for only 1500 if you are slaver. 
Sergeant Stark in VC correction center.
NCR ranger Elise in NCR of course.
All caravan leaders from HUB.
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Craftable items           Materials needed to craft                                          Also need                                     Details
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Fuel Cell Regulator      4x Junk 8x Metal parts 1x Electronic parts 1x flint     Workbench      Just like fuel cell controller in f2. Can be input in all vehicles just not 
                                                                                                                                         vertibird in New Reno in T-Rays shop for 1500 caps. It reduces traveling
                                                                                                                                         cost by 50%
Fuel Cell Controller      4x metal parts 3x Junk 2x alloys                               Workbench       Needed for items in profession level 3
Blower              4x Junk  1x metal part 1x golden gecko pelt and  Scout book  Workbench       Can be input in all vehicles just not vertibird in NCR with guy in robes 
                                                                                                                                         near many wrecked cars. Increases vehicle speed by 10%.
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Scout profession level 3. (cost 4500 caps to learn). Requires 170% outdoorsman 8 endurance 7 intelligence to learn the profession.
Teachers:
Sergeant Stark in VC correction center.
NCR ranger Elise in NCR of course.
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Craftable items           Materials needed to craft                                                                                                            Also Need                                     Details
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Buggy                      5x wood 10x junk 20x metal parts 10x alloys  3x electronic parts 4x rubber boots (for tires 

)   Workbench in T-ray shop only          ----
                                5x fiber  1x Fuel cell controller 
Scout                       2x Wood 10x junk 25x metal parts 15x alloys 3x electronic parts 6x rubber boots  1x fuel cell   Workbench in T-ray shop only          ----
                                controller            
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So i think thats all i can think off as my suggestion, and as i say its just a suggestion so things can be improved, changed and etc. But i think you get the picture :>