Help with Installing Upper and Lower Trim

[Mapearso]

So -- my '72 Custom/10 SWB came equipped with upper and lower trim moldings options... but the prior owner removed it and filled all the holes when he had the truck repainted.

I am looking to put the moldings back on, here are my questions --

1) Has anyone had really good results using the clips with adhesive? (LMC sells these...)

2) If I decide to go with the original type clips and not the adhesive, can I install the molding properly without removing the fenders and bedsides???

Thanks for the info!!