So Frustrated!

What are your opinions on remans from a company like that link above. If I do a reman I see there are also 5.9's some are LA, some are magnum. The magnums seem to be long blocks. With that being said will that change my drive shaft length? Or is the engine moved forward to make up that difference. Really how much longer are they?

Looks like my engine option is open now, Im not stuck with the 318 only. So what would you guys do? Money is still a issue so dont go hog wild. The GF is already looking at me like I've spent enough on this car! Would you just pick something up off of craigslist and throw it in or still have it rebuilt and gone thru? Do a reman from a company? What size engine? Please I do need help with this because I get to many thoughts in my head and then get indecisive! LOL