How’s this idea?
In the beginning of the film when Obi-Wan decides to give Luke the toy, we cut in the last part of the series where Obi-Wan approaches Luke and says “Hello there!”. We then hear Owen’s voice “I thought I told you to leave us” etc and cut to a suitable shot of Owen at the homestead. “Walk with me”, then wipe to the “He must be trained/Like you trained his father” scene (perhaps change background to suggest they are still somewhere else on the farm). We don’t see the toy being returned, so it’s implied Luke still has it. Then obi-Wan continues his adventure, and we don’t see the Lars family again…
Until, at the very end after saying bye to the Organas at Alderaan, we cut back to Obi-Wan packing up his cave. He rides his animal… and we then see him check on the farm with binoculars (scene taken from first episode). He sees Luke playing pilot, implied to be because of the toy he got at the beginning. Obi-Wan then rides away and meets QGJ.
Thoughts?
This would of course means losing the “battle” of the Lars homestead entirely, but if Reva dies by Vader’s hand it’s ok anyway
1000000% this. This isn’t Luke’s story with Ben, it’s Leila’s. The less he is in it, the better.