New Project (would like some input)

[Hugo Aguillon]

I'm closing on a property on Thursday. My question is to the experienced flippers... What cosmetic materials would y'all recommend on adding to a flip to generate more profit while saving money? 

Does it matter if I use fiberboard instead of wood boards for trim and doors? Add crown moldings?

Paint the chimney or redoing it with stone?

I was also thinking of adding an interior barn door hoping it will help sell the property...

laminate vs woodfloors

Info on the 2500sq ft house:

I'm buying it for about 40% of its value giving me about 30% (50-60k for rehab if i sell for more per sq ft). 

Rehab costs should be about 35-40k. Should I spend more to drive its value up?

Comps in the area sell for $75-90per sq ft on newer remodeled homes.