Peanut allergy is a type of food allergy to peanuts. It is different from nut allergies. Physical symptoms of allergic reaction can include itchiness, urticaria, swelling, eczema, sneezing, asthma, abdominal pain, drop in blood pressure, diarrhea, and cardiac arrest. Anaphylaxis may occur.
A natural stone wall will cost around $8 to $12 per square foot based on the type of stone chosen. A concrete block wall costs $6.10 to $7.60 per linear foot.
$3000 for a 100 foot long by 3 foot high natural stone wall is ridiculously low, especially if they are gathering natural stone around your property, which is a lot of extra work,not only in the gathering ,but the difficulty of assembly.