Install Nissan X-Trail Seat Covers, have ben purchased ready to install

I need my 2003 Nissan X-Trail’s front bucket seats fitted with new seat covers.I have already purchased the covers.. The original upholstery is worn but not torn, so the goal is a clean, snug installation that instantly refreshes the cabin without creating additional bulk or wrinkles.

Deliverable:
• Both front bucket seats fully covered, correctly aligned, fastened, and neatly finished
• All seat functions—sliding, reclining, airbags—operating exactly as before

Please outline the estimated time you’ll need, any prep work I should handle beforehand, and what tools or fasteners you plan to use so everything goes smoothly on fitting day.