First thing, I think you're being charged too much on the RIA. Last gunshow I went too here in DFW they were still in the $475 range for the no frills model. The Remington runs around $625 from honest dealers, a little more for the stainless.
Normally, I'd agree with a suggestion to buy Ruger products, but my experience has been quite hit-and-miss with the SR1911. I will add, I have and do own Ruger products. I'm a fan.YEah, I would suggest getting the Ruger SR 1911 full size. The COmmander version isnt bad , too. Dont spend too much unless money is not a problem. Remember the ammo nowadays are getting way expensive and hard to come by.