Beechcraft Barron or Baron 55, 58 or even the G58 are rubbish to work on or maintain - take the cowls of a new $1M+ baron with out a scratch.
At around the B200 they became quite good, and have never needed to change a cable other than the door cables on some.
To carry out a CASA sched 5 on a Baron that a owner will think is only a minor rip off by the Maint Org requires a lot of tick and flick due lack of acces and surplus of screws.
IMO a CASA Shed 5 inspection on a B58 should be a min of 60hrs (no defects) for a CAR 30 and a largish Part 145 more like 85hrs with no tick and flicks.