Maybe Crosby Manitou SP and pay for a site way down by the river. Water for sure. Night two some folks could stay or hike on elsewhere. An in-and-out. No shuttling of cars. The cost is minor and the trails are less maintained than SHT. Several options to take the direct route in via Cedar Ridge Trail or extend your hike by taking the Humpback Trail to the River Trail.
Site 13 or 14 will hold several hangers. Maybe two mile hike in. Still may be dry up there on the small streams and creeks. Not 100% sure though.
Anyhow....those are my thoughts along with Wandern'Fool.
Hope to make it.