QUES: In older buildings there will be difficult to find builtin models

correct the punctuation.

CORRECTED: In older buildings, there will be difficult to find builtin models.

QUES: LeadingCamping Hallingdal Feriepark is the best campsite in the whole country perfectly located for a complete Norway experience

correct the punctuation.

CORRECTED: LeadingCamping Hallingdal Feriepark is the best campsite in the whole country, perfectly located for a complete Norway experience.

QUES: And this evolution also involves some change in the management chip and machine programming

correct the punctuation.

CORRECTED:
And this evolution also involves some change in the management chip and machine programming.