Hoarder house is so bad, how to estimate reno, inspect, know #'s

[Matt Berklacy]

we are near getting a contract, but not under contract yet:

we have a house that is so full of stuff, that an inspector will not be able to get in anywhere, and we cant confirm issues, repairs, and know what we have, before hand, with intent to wholesale, or retail it., and it will take 3 dumpsters, and maybe 3k+ of costs, labor to unload place...
what do you suggest to get under contract and inspect, for diligence, without spending $3k just to unload the house for an inspector to get in?  

2-4 dumpsters for 3 bed house W /1 garage clean out 

Dumpster- $350x 4 = $1400 

Labor $350 daily( 3 people) x 2 days= $1050 TOTAL $2450
3 days labor=$2800

We can fill 1 dumpster in one day so we might be able to cut 1 day of labor down-)