Fitting Sills

Hi, I am about to embark on fitting new sills to my Disco 200 tdi. First time I will have done this, has anyone out there got any hints, tips, suggestions, time saving ideas, ways of getting a more professional job (without letting a pro do it!)
Any help at all would really be appreciated.
Thanks

do you mean sills as per original, or a pr of sliders?

Ormus,
Thanks, I mean standard sills.

although ive never done standard sills on a disco, it looks a fairly easy job.
best advice i would suggest is try and get a mate with you.
much easier for one man to line it all up whilst tother one starts the fixings.