Get the kit available through Propsummit now and make your own finish.
The first one had a beautiful finish but the wrong color grips.
Then a bunch of others with flat or what not finishes. None accurate IMO.
Then just before this current "2049" version (that seems to be the exact, and widely considered worst version from two versions ago) there was the best one which was basically an as first built with a beautiful blue polished top. It was the only one nicer than the first one but with a few improvements and of course the correct color grips. Then they went back to the previous horrible version with the 2049 version. I'm sorry, they are all awesome I am just stating my opinion of finishes.
Since the one just before the 2049 is, in my opinion the only accurate one for an As First Built Version that would be acceptable, and none others are even close to the film prop, buy the kit and make it your own. Much cheaper and a better way to go.
Just my opinion of course.
Be careful on Ebay. Lots of later models have the wrong color "Rootbeer" grips form the first one because guys with the first model bought later models and switched the grips.
Just my opinion.