We are planning to migrate our existing website from Teamsite to AEM. Please suggest on below points 1.How to migrate existing Teamsite content store to AEM. 2.We have 70k assets(includes images, docs, pdf, video and audio files).How to upload assets from Teamsite to AEM with metadata. 3.Migrate existing users & groups to AEM. 4.How to implement custom login which authenticated in MY SQL db.