25% water vs 1%...
Hi gb
What was the observed hydrogen levels around the Moon's poles? As I remember it was about ~1% water, which is a lot harder to extract than 25% in the NEOs. And some NEOs might be ice coated in asphalt (dust+kerogen sludge) which would be even easier to extract.
An integrated mission architecture would launch off using solar-sails or concentrator arrays to power SEP or solar thermal. Then use those same photon-collectors to process the NEO target before finally using some of the liberated water mass to get back to L1 or wherever's convenient.