RE: S/E
The best pictures are already in the instruction manual. You should read it all the way through (twice), study all the pictures, before even starting building. If you don't understand any process, Sig has a hotline and will be glad to walk you through it. (Look on the inside front cover under Customer Service) Don't jump around the steps, they are all numbered in proper assembly sequence. Don't glue anything until they tell you to do so.
Some have posted their assembly progress on the net, don't follow them as per sequence. If you are looking for "shortcuts", would advise you to just take things one step at a time toward completion. If there was an easier way, the factory would already advise you. Building is a learning by doing process.
Bob