re-installing upper side molding

[72farmer]

PO on my 71 did a terrible job installing the upper bedside moulding.I had to take it back off because it was not secured at the front near cab.Do I leave the plastic stick on molding clips on the bedside?And snap the molding back on them and just add a couple new ones?Or do I tear them off clean them up and put double sided tape back on them?Position them back on molding and get the molding where it needs to be and press it on?I hate installing moldings!