I think it will work well. AQD_ottawa will be running it, he is the GHL Profilux sponsor representative on RC.
See post 12, 15 on the thread you posted to:
http://www.reefcentral.com/forums/showthread.php?t=1823778
Payments and shipping will be direct through progressive reef, and a shipping deposit of $24 will be required.
I pm'ed him a while back and explained the difficulty of shipping all units to one person. I strongly urged him to reconsider separate shipping, and payment methods because of the price of these units. I think he, and progressive realize they will have much better luck if they conduct the group buy similar to bulk reef supply.
He said more details will follow on Tuesday. It seems there is a fairly good amount of buzz on the forum, but I don't know how long it will take for the buy time period.
I've never owned a litermeter but IMO getting the profilux would be worth the wait. When you are buying expensive equipment you will have for 5+ years, you should get the equipment built with quality, reliability, and features. The profilux standalone comes with it's own built in controller for the unit, and I would bet money that it has more features and is better built than the litermeter. Also the stand alone has capability to add a slave unit to it so you could potentially add up to 8 pumps if you need to expand later.
That is just my opinion, and I do understand if you are not willing to wait.