Great size, my 7 window 3800 is just under 28' BTB. I like to watch the auctions occasionally to see how prices have moved. I bought mine in 2018 for $2600. I saw about a dozen P-Pumped DT466 7 windows 300k+ miles go from Los Angeles in July-ish for about $4k on GovDeals, and a handful of 6-8 window P-Pumped DT466s ~180k go from Kansas for about the same price on PurpleWave in March.
The one you want is out there, you've got got to be ready to pounce. Having $5k + travel money set aside would be wise.
Here's some links of sold ones to see what I mean.