Honestly the 120.45 freq should be dropped and replaced with 135.0
120.45 is a sector that is not used anymore and is usually combined with 125.6 or 119.4 whereas 135.0 is finals and is open 90 percent of the time.
Just a suggestion.
there is still a section for it in the L30 SOP for KENO (the sector covered by 120.45) and frequency, but you're right; it is combined with Satellite (119.4) most of the time. Since it handles arrivals coming in AOB 7000ft, and is further east than Satellite, I can see why that's there. Also, it sequences the El Cortez arrivals.
I agree that Final would be great, but adding Final on as well as Satellite, Granite, Lake, and Final, plus Mead, Daggett, and Canyon (the departure frequencies) all on the same feed would be a bit too busy given the traffic L30 let alone KLAS gets.
If someone would be gracious enough to provide a second feed that can split those up (perhaps arrivals on one feed, departures on another). Again, we'd need a volunteer for it. My place is too far away for it (Summerlin), so on a clear day, I can get pilot side of VGT, and barely ATC side, and that's with having full squelch.
BL.