Value of custom build laptop?

I am looking to upgrade my laptop and am wondering if anyone has any insight on the value of my current custom build. I am trying to decide if I should part it out, sell it out right, or keep parts of it for a new build. I am kind of waiting for the Dell XPS to come out with it's refresh in early 2019 hopefully but not sure I will be able to wait that long. (waiting for 64gb ram capability)

Current specs: intel i7 7700k 4.2ghz z270 motherboard 64gb crucial ram windows 10 pro 64bit nvidia geforce 1060 2 x m.2 samsung 970 pro 1tb drives

This machine is great expect the display isn't great and it's bulky and hard to transport. I'm looking for a similar machine that has a better display for design and similar specs. I think I spent ~$5000 when I built this originally maybe a bit less.

Just trying to plan the best path to upgrade and looking for suggestions!

Thanks, Kevin