Not sure what makes you think the clutch might need attention but replacing one on these cars with a T5 is about as easy as a clutch job gets. No need for special tools or a hoist or anything like that. a jack, jackstands and typical hand tools is all it takes. T5s are super light so doing the manual bench press to install one is still my go to. Even if what hair I have left might be more gray these days!
Curious if your dad put in a hydraulic throw-out bearing or hydraulic slave or good old fashioned mechanical clutch linkage. If not a hydraulic bearing, clutch time would be opportune time to upgrade. Simple to do and the pedal ease makes it worthwhile for sure. Cost can stack up but not outrageous if doing yourself.