Laser recommendation for Spkr set-up?

Bosch DLR130K. You can get it on Amazon around $80. Might sound a little pricey but it turned out to be the most important tool I've ever used in my listening room. Once you own it you will wonder how you ever managed properly without it. Precise measurements to 1/16th inch. It's NOT overkill...every speaker set up will be dramatically easier and sound dramatically better than if you didn't use it. Don't hesitate. It is exactly what you are looking for. You will thank me, I guarantee it.
Happy Lissn'n

"NOT overkill...every speaker set up will be dramatically easier and sound dramatically better than if you didn't use it."

I meant for accuracy, not convenience. You can still do just as good a job without it. It will just take you longer.

I understand where you're coming from as far as ultimately getting it right but for the eighty bucs you save so much time; not only initially but also with subsequent " tweaking adjustments". You can fine tune every experimental position to 1/16th accuracy each time and therefore give each one its just deserve ( as compared to "ballparking it" each time for 'general feel'). A lot depends on how easy/ or not your speakers are to move. I have never met a speaker that doesn't sound best after serious precision placement and the Bosch lets you do it as quickly and accurately as possible.Remember: accurate speaker positioning using measuring tape/yardsticks/ strings/ or whatever is inherently tedious. Are you measuring to the walls or the molding...How precise is your toe-in angle? Distances from front walls, side walls, inside edges of speakers to each other... even rake angle... All precisely matched...Are you using spikes after initial placement...? Are you shifting 100+ pound speakers on a single corner point? The bigger, the heavier, the more PITA the speaker is, the more the Bosch becomes a lifesaver.
Do yourself a favor and don't go out to a decent dinner one weekend and put the $$ into the Bosch. Trust me: A NO Brainer. Have fun.

I have a nephew who's in construction and he gave me a small laser level device that looks like this and works like a charm.

Once you've set your distance from the front wall it's so easy, once you've determined where you sit, to aim your speakers where you want with it.

All the best,
Nonoise

"Do yourself a favor and don't go out to a decent dinner one weekend and put the $$ into the Bosch. Trust me: A NO Brainer. Have fun."

As luck would have it, I can eat tonight. I already have a laser level and a laser ruler. If you look at my first post, you'll see I gave the OP some suggestions as to where he can buy his own. That said, I can get the same results either way. An inch is an inch.It doesn't matter how expensive the ruler is. I have many digital measuring tools, and they all need to be calibrated from time to time. The calibrations are all analog. Weights, bars, levels, etc.. They're just tools. The user is what makes the difference.