Purchased N6 but requesting return... Good decision?

​​I'm coming from n5 and really wanted to upgrade to n6p until I saw the price! This is one of reasons I didn't upgrade to n6 when it was released last year, the other being that it seemed too big!...

I recently purchased n6 64gb for about £200 from rakuten (£200 as got £80 worth of points)... I'm a tinkerer and love timely updates to OS when Google releases new versions and hence why I really wanted you stay with nexus, plus the fact that there's more development for nexus devices than any other devices...

I've requested a return but not received the RMA yet... I was probably going to stay with n5 until n6p prices come down or buy either moto x style or g4 whichever received timely Android 6 update...

Any advice / suggestions welcome ? Am I going to regret sending n6 back (my main reason is the size... Seems like a spade in my hand and I've had a look no other manufacturer has released such a ginormous phone recently... Even Google played safe this time with 5.7")...

ROM Upgrade Options for Moto G Purchased 4/2014 Running VZW Android 4.3 US

Hello, this is my first post on these forums, but I have used several threads found on here previously. A little background: I purchased my Moto G from Boost Mobile back in April of 2014, ran it for a month on the Boost network, then unlocked the bootloader, rooted it, and loaded the Verizon Android 4.3 US rom and ported it over to Page Plus, and I have been there ever since.

My question now is, I'd like to get a clean factory reset on it in hopes of restoring some performance. It lags from time to time and has developed some quirks over the year and a half. I know Android 4.3 is an old version, would I benefit from any newer ones? I've been having trouble finding the correct rom I should be using for my phone. The link I originally got the VZW 4.3 US Rom from is no longer working, and I'm not sure where else to look.

I've backed up my user apps+app data with Titanium Backup Pro, my WiFi passwords, SMS, and this time, remembered to transfer my pictures as well as the backup files themselves off my internal storage/SD card. I think I am ready to flash.

What options should I look into for a new start? TIA.