Wholesaling to Builders vs Flippers

[Val Hill]

Hey BP fam! 

I'm working on getting my first deal under contract! A motivated seller just got back to me about wanting to sell & I have an appointment set to check out the property. As of now, it's unsure as to whether the property will be flipped or whether it needs to be a teardown. My question is, I know flippers take on properties that are 75% of the ARV (or better) but, what are teardown/new build investors qualifications for max offer?

Comps for other reno-ed properties in that area are 360k 

New builds in that area are selling for upwards of 600k

So, if the property is deemed a teardown, how to I determine my max offer to the seller? 

Thanks in advance guys!