For those who can’t afford a $7 million burial vault, Saint Patrick’s Old Cathedral is now peddling cut-rate crypt space for urns for as little as $7,000.

The Soho-based house of God — which detailed its plans to sell a $7 million family burial vault in Monday’s Post — will soon build roughly 2,500 of the cheaper spiritual hot spots, according to crypt keeper Frank Alfieri.

The church plans to build a new columbarium with 2,000 of the urn spaces next to famous dead denizens in its historical crypt, says Alfieri, indicating they’ll go for around $10,000 each.

Another roughly 500 urn spaces will be up for grabs outside in the church’s cemetery, and they’ll be roughly $7,000 apiece, he added.

Buyers of space inside the church will be blessed with stone-carved urn drawers for their ashes in the walls of the church’s catacombs, where New York’s first bishop, John Connolly, and other big names are buried.

“Down in the crypts, there’s little niches,” Alfieri said. “The niches are 12 by 12 by 14 inches. They’re for cremated remains, not for bodies. This is a sacred place, and we’ve got to respect it as such.”

Money made from the heavenly afterlife real estate — including the vault and urn spaces — will help pay for the restoration of the church’s 150-year-old pipe organ, Alfieri said.

“We need a miracle for the organ, and this is potentially the miracle,” he said, adding that the church may offer up “naming rights of the organ” to a special contributor.

Roughly 100 new urn spaces could be ready as soon as Christmas, Alfieri said.

As The Post reported, the church is opening its 200-year-old crypt to the public as a final resting place for the first time.

The church already has a small columbarium, but “due to the overwhelming demand for niches in our first columbarium, more will be tactfully added within the Basillica’s historic cemetery and celebrated catacombs,” reads a pamphlet about the virtues of cremation, printed by the church.