How does it work? Sales Process For Customers Requiring Material Supply Only S1: DIY Preliminary Agreement Process (DIY-PA) Click to download a PDF version of S1 S2: DIY Contract Process (DIY-CT) Click to download a PDF version of S2 Sales Process For Customers Requiring iBuild to Source An Affiliated Builder S3: DIFY Preliminary Agreement Process (DIFY-PA) Click to download a PDF version of S3 S4: Modular Supply & DIFY Assembly Process (DIFY-MD) Click to download a PDF version of S4