Hi Chris: I think that C166 cell line (mouse embryonic yolk sac endothelial cell line) can be a good candidate cell line for you (https://www.ncbi.nlm.nih.gov/pubmed/8792159). The cell line is level 1 and you can get it rom ATCC (CRL 2581). I have not worked with this cel line before but from the paper describing its establishment, it seems very promising. Keep me updated!