I'm a bit experienced in Lego but not technic. I like Cars mainly. I wanted 42038 cause it has a nice alternate model. I like that Volvo ew160. I guess the off-roader would be good with the Volvo ew160. I've looked on the sets you guys told and that mobile crane looks very neat but because I don't live in the us or neither any European country. That Volvo ew160 has power functions and those pneumatics which I don't really know much about and is a good price. Since im not in america, eBay is easier to get than form amazon although amazon ships to my country too. I've seen some of sariel's workshop reviews ,such as the artic truck,off roader and the crawler crane that was linked.
Can get the crawler crane but I want to buy about 2 sets. For that claas xerion I guess it came it about a few time ago to store and it's expensive in all shops and ordering it is also expensive.
Lao this leads me to buy the Volvo ew160, formula off roader and I forgot to mention I like that le mans car but it's too much to add up for buying it with ew160. Thx for all of your suggestions I have finally decided To go with those sets. Still this im learning