Just as a comment... the ESA mission GAIA is running right now and will deliver a 3D fix of a BILLION stars in this galaxy in the next 5 years... 
With available tech (interwave, easy relativistic speed, FTL) I would guess we will have a 3D fix on ALL visible stars in Fenspace 2025.
(edit) okay, all visible stars in THIS galaxy.

With available tech (interwave, easy relativistic speed, FTL) I would guess we will have a 3D fix on ALL visible stars in Fenspace 2025.
(edit) okay, all visible stars in THIS galaxy.