Trumpet,
Here's another vote for Colt. Colts are far better values, given the significantly better quality of internal parts, and superior metallurgy overall.
And I really agree with Don about Colt dimensions. Yes, they have certainly had their manufacturing challenges in the past, but at least they're working off the correct prints. Current Colts have just been fantastic overall, and specifically in regards to critical dimensions.
The icing on the cake is that current Colt barrels are really nice; with a fitted bushing and crown, it will serve most user's accuracy needs just fine. And there's just no escaping the history and allure of that prancing pony!
Hope your project goes great!
Best Regards