cos

I like the way you think. Though you'd want to do some stringent calculations beforehand and timing during the journey (and I hope you can control your acceleration well) if you don't want to risk either seriously overshooting or, much worse, impacting at speed on the far end. You'd also need good aim, though to some extent you could correct as you go. The bigger the mass you're pushing, the trickier corrections will be.

But I guess as long as you get the big moment of when to switch from accelerating to decelerating roughly right, you shouldn't be going too fast at the end and should be able to avoid disaster. I would definitely consult with (or take along) someone with a PhD in orbital mechanics, though. ;)