I'm sure your local area meet will be able to give you advice and help ...
Agree with above, simple if sometime fiddley
5mins should probably read slightly longer ... A bit lie Jamies 15min meals in reality it takes a tad longer
Providing you can use and have access to Allen keys and a socket set then job done
Initial fitting may require a tad more work, such as the window heater cabling and gaining access to the four nuts as this may require removal or drilling of the internal trim (if fitted)