Why would it be hard? People buy land all the time with wrecked/abandoned structures on them. The land is either worth the price or it's not. The house is irrelevant since it's a tear-down. The bank will tell you quickly if the land is worth the price.
Well land value I have from my appraisal. It can be worth no more than 30k tops. Highest valued land with in 5 mile radius per my surveyor is 5800. As of March .