The SENS Research Foundation has a network of supporters among portions of the VC crowd in the Bay Area. Some of the halo of attached or associated young researchers there should explore putting one of their lines of research more likely to get somewhere interesting soon into YC, see what happens.

A completely baked form of allotopic expression or toolkits for glucosepane breakdown in tissues could both produce viable and highly useful technology platforms prior to being far enough along to be applied to the reversal of aspects of aging. Neither of those seems too far away to be non-viable for this sort of timescale, and meaningful biotech projects are very cheap these days if you have access to a provisioned lab.