Deciding on a mount?

[Beta Man]

For the Mitsu HC1500 I need an adjustable (distance from ceiling) mount, and I'm looking for them on amazon..... I need to make sure I select one that has enough "Range" for me to move it up/down etc.... I have flexibility with where I put the screen also....

here's what I'm doing...

100" 16:9 screen......

I'd like to start the screen 24 inches from the floor, but I could go all the way down to the floor, or up to 36-40 inches or so from the floor. With 8 Foot ceilings, since the screen will be 49" tall (right?) what one of these mounts would work best

http://www.amazon.com/Peerless-PARAM...407758&sr=1-38

will that one work for this projector?

how about this one... universal, but will it adjust to the heights I'd need? (I can adjust the screen placement of course)

http://www.amazon.com/Premier-Mounts...407758&sr=1-29


This is the cheapest, but is it a good candidate?

http://www.amazon.com/Projector-Gear...6407929&sr=1-1


thanks, I'm going crazy trying to figure this all out, and I'm not a great DIY'er..... so I think buying a mount is the way to go here.