Rather than surplus, I'd recommend having your original radiator fixed. Tsambahan talaga ang surplus, specially with Hondas, kasi plastic top ang rad. Except kung irreparable na.

Original Honda radiators (Nippondenso/Denso) for Civics cost over 11k. Replacement (Evercool), mga 5.6k, pero 2 rows na, tapos bronze top pa. Surplus mga 1k lang, depende sa condition/model.