Abseil Rope: 75 Coins = 300,000 Pokedollars
Shovel: 100 Coins = 400,000 Pokedollars
Flashlight: 75 Coins = 300,000 Pokedollars
Battering Ram: 100 Coins = 400,000 Pokedollars
Tree Axe: 75 Coins = 300,000 Pokedollars
Pick Axe: 75 Coins = 300,000 Pokedollars
Dive Mask: 75 Coins = 300,000 Pokedollars
Sturdy Hiking Boots: 75 Coins = 300,000 Pokedollars
Total Pokedollars: 2,600,000 Pokedollars or 6.5 Coin Capsules (Essentially you need 7 because you can't buy half capsule.)
It would be more efficient to buy 7 coin capsules your self and buy the items alone. You will have then some coins rest too.