There is a detail that you have missed in that clip where treadwell extends his welding arm to repair the moisture vaporater. This is animation based effect where the extended arm is paused to composite the welding effect on the droids arm.
I actually plan to back later and work more on that clip. I will need to see that missing part is, I did not think I left out any scene
After the stormtroopers in the desert “look sir droids” it could be better to create a bridge by cutting to treadwell here reparing the vaporator without Luke at all Then after he finishes his repairs he looks around and spots the sandcrawler approaching in the distance towards the lars homestead. Using this scene in this way would connect the Farm to where the Sandcrawler is approaching.
In my planned extended version, I was going to have closer to the beginning, the battle like in the radio drama, but this is also an interesting idea with the bridge after look sir droids.