My sons funeral

My son passed away suddenly (reasons still not known) and Im struggling to pay for his funeral alone , I have 4 children in total and a grandson on the way and im a single parent, my son deserves a  proper send off and im doing my best to give him that but its so hard alone, his body is in England and im in Scotland  so traveling costs  alone have come in to the hundreds for me and his sisters to get to him and to try and arrange his funeral. Im not looking for help with the full costs of a send off as thats my job as his mum and ive never taken anything from anyone before as im extremely proud but Im scared I won't be able to pay for his final bed in time to lay him to rest so k. Swallowing my pride and asking for help as i dont have anyone else to ask.