Anyone have experience with serpentine belt kits from Vintage Air or LMC?

[hpcgmc]

I'm researching my engine build. I'm not much of a motor guy, so don't have any experience with pulleys, brackets, etc. As I research this, it seems there are lots of options, and lots of mistakes to be made if you get the wrong brackets, pulleys, etc. I plan to purchase a $1500.00 350 crate engine from Summit.

I see both LMC and Vintage Air have serpentine belt kits that include water pump, alternator, brackets, power steering pump, etc. However, the aren't cheap! $1800 for LMC and $2000 for Vintage Air. That said, it would be worth a few hundred dollars extra to just bolt everything together and be done with it, versus 20 trips to parts stores and junkyards because I mismeasured by 1/4" (which I'm prone to do). An added bonus is that the engine compartment should look very clean with the serpentine belt and all matching brackets.

I'm under the impression that LMC sacrifices quality for price. I've always heard Vintage Air is very good quality, so I'm a little swayed towards Vintage Air already. What do you guys think?

If there are other, less expensive options, please let me know.

Here's LMC: http://www.lmctruck.com/icatalog/cb/full.aspx?Page=127

Here's Vintage Air: http://www.summitracing.com/parts/vta-174008/overview/