Complex sentence: Ambulance Romance is a rare vinyl EP released on an obscure record company, and thus until now very hard to find, but they will be released along with the His First Crush EP on Pass the Flask (Reissue).
Split into simpler sentences: Ambulance Romance is a rare vinyl EP released on an obscure record company, and thus as an EP is very hard to find. However, the songs were released, along with the His First Crush EP, on Pass the Flask (Reissue).