How about these?
"We are moving to a new house not far from you. We are going to be seeing a lot of each other and we'll be able to travel back from school together."
OR
"They've reduced the price. I'm going to buy this book, it will help me perform better in class."
Can we start with "going to" show the intention and then go on with "will" to deliver information?
"I'm going to go to a super market and I will get pizza and some ready mixed salads. When I've finished buying stuff, I'll drive to a gas station to get my car my filled up"?