Comprehensive Method CRM Customization Expert Needed

1) I want the ESTIMATE to allow the deposit but then show the balance and split that balance up between invoices. Can we show the former ESTIMATE and any related and paid INVOICES on the current invoice? So like The ESTIMATE shows what I suggested. Then the next INVOICE would show the project total, what was paid, what was still a balance (maybe the related, original ESTIMATE and the amount due on that invoice. And then show the next invoice (or invoices?) ANd then INVOICE #2 would show similar - the past paid and info + the current and future. Or maybe I’m thinking of this wrong and overly complex! I’m open to your expertise!

2) So then all of this - the ESTIMATE and INVOICES also appear in QuickBooks ledger as normal?