Don't trade. Upgrade. 1K is enough to turn your pistol into a serious custom gun.
You are not going to be able to afford decent checkering for that price. You are going to have to settle for serrations. They are a little softer, but look very nice.
You can get new sights. Heinies with the rear notch opened to .140 are very quick. Leave the sights black, for now.
A trigger job comes witht he added advantage of replacing all of your internal components with better ones.
Beavertail fit is important to me. It takes about 100 dollars to get a smith to do it right. It is worth every penny.
You won't need a new barrel, just a tighter bushing fit. The pistol will shoot better than you ever will.
A Yost 1* Enhanced comes with everything you want for 1045 on your gun. Add a light rail/light for 80 dollars, 60 if you get the light at the same time, and subtract the lanyard loop in the mainspring housing for, I believe, a credit of 55 dollars.