@wildfir: I think you linked a bad compound, hes doing the coupling on pyrimidine not pyridine.
The 2-Cl-4Br-pyrimidine seems quite expensive >500£ /g however, it can be made from 2-bromopyrimidine which is reasonably cheap.
SYNTHESIS 2008, No. 22, pp 3697–3702
This paper might be interseting to OP as well, depending on what exactly is he trying to do it might be a way around the stille coupling.