Here's what I'd do:
From Victoria;
1st night; Redding CA (675 mi, approx 13 Hr) OR Mt Shasta CA (614, approx 12 hr)
Redding has any number of clean budget motels, Mt Shasta's a bit more expensive, not as much choice
2nd night; Lebec CA (from Redding 472 mi, approx 8 hrs; from Mt Shasta 532 mi, 9 hr)
There's a nice Motel 6 at Lebec, clean and not expensive
Distance from Lebec to DL is approx 100 miles, 2 hours (depending on LA traffic)
I used to live in Redding, we'd usually do the drive in one day or stay halfway at Santa Nella, but that left a long drive the second day (6 hrs-ish). These days I live near Sacramento and do the drive in one day (7 hrs) unless we decide to leave the night before. If we do that we stay in Coalinga, Lost Hills, or Lebec.
The drive times I've listed are strictly drive times without stops, so you may want to add in more time if you have to stop frequently. We prefer to make a big 'push' on mileage the first day, then shorter drives on subsequent days. If you want a more equal distance for days 1 and 2, you could consider Night 1 in Grants Pass OR. That would be 2 (approx) 10 hour days ending up in Lebec for night 2.