My last wish with Cancer

When I was diagnosed again with breast cancer this time we knew it was worse and had spread to my bones and lung. All treatments hadn't been working and we decided our dream of travelling Australia was becoming further away. So we packed up house , packed the caravan and off we went . Just to get going on the road was work for my palliative care team organising all my meds, referrals for hospitals along the way. We had had such bad luck the last year right up until the day we left ( RTA had cancelled our caravan rego due to another caravan having same VIN no as ours and took four weeks to sort out) we thought this journey was a chance for my husband and I and also my mum and dad to experience this grey country while still being able to seek medical treatment in OZ. ten days into trip our car ( that we had spent $5k getting ready to travel) Toyota Prado tough as nails , just stopped while driving . We had no phone service , no town and needed to be towed 300km on dirt road to get to Tibooburra. The dad had to go back tow our van and make another two trips to get his. We arrived at broken hill one week ago to be told our motor had seized and not worth fixing it but to get a new or reconditioned engine. We have two choices get the caravan and car towed back to port Macquarie and just give up or try to get a new motor and continue on with our dream before it's too late. We have never asked for help but this was suggested to us to try to help and it's our last resort .