It really depends on your goal with the truck and financial situation. If your plan is to keep it stock and you're really set on a 2016+ LC then somewhere in the 40-45k range seems reasonable to me, given there's a 140k mile 2013 on Autonation for $39k. Again Carvana has a 2013 LX with 76k miles for $47k, so if your goal is a 200-series and you don't care about LC vs LX I'd encourage you to look at those as well.
When I was buying my plan was to finance for 5 years, so I was looking for a good condition recent off-lease with low mileage as I didn't want to risk a big expense if something went wrong. I looked at a ~100k mile 2008 LX at the time which was ~$32k but IMO was overpriced by a few grand and so I passed on it because at the time my target was "trade in + $15k out the door" and with tax I would've been into it about $18-19k. I ended up financing ~$35k (including tax) for a newer truck with half the mileage, but I was OK with that because it was warrantied and when I considered that I drive ~12k miles/year it meant I was spending ~$16k more for an extra 4-5 years of ownership. Ultimately I spent about 6 months before I found the vehicle I ended up with.
My $0.02 - consider an LX and buy the best condition (accident and rust free) vehicle you can find for what you can afford. IMO it's worth spending $5-10k more on these trucks if you can get one with half the mileage. That's not to say a high mileage truck is bad, but given the depreciation curve flattens out a lot if you look at the purchase in terms of $/remaining miles you'll find that's the best bargain. i.e.
Assuming all trucks go 320k miles before requiring some significant $ (meaning your truck has 50% of it's usable life left):
- Carvana: A 2020 LC with 9k miles costs $101k = $0.32/mile
- Autonation: A 2013 LC with 132k costs $39k = $0.22/mile
- Carvana: A 2013 LX with 76k miles costs $47k = $0.20/mile
- Carmax: A 2013 LX with 53k miles costs $49k = $0.18/mile
- Your dealer: A 2016 LC with 160k miles negotiated for ~$48k = $0.30/mile
Obviously the above is a gross oversimplification, but it's one of the methods I used when I was looking around.