Collectors can be very discriminating if they are serious about their hobby.
Some, on the other hand, will buy only because it is a US Property 1911.
For a serious collector the engraved name will decrease the value ( unless it is someone famous which could add value) and the mark from the slide stop is also frowned on. Then there's the unmatched
grips which is an easy fix.
Now, your pistol isn't junk but I would rate your 1911 as "good" condition and should bring $1200 to $1500. BUT, there is a market for these old 1911's and just maybe someone would be willing to pay more. Are you confused yet ?
Personally, I would hold on to that pistol for a few years as value WILL increase as the supply dwindles. As supply goes down buyers will overlook the "flaws" on your 1911 and pay well. Just be patient.
Just my .02