Dog stroller for newly rescue while recovering from IVDD (Balloch G83)

I rehomed a dog 4 weeks ago. She has a back injury she came to me with, she's on strict rest but she's miserable as been removed from an almost 4 years kenneled with other dogs, including her mum. Previous owner wanted rid of her and now shes in a home alone with me, which is very strange to her, especially the solo dog situation. I wonder if anyone has a dog stroller they don't need anymore. I need one similiar size to either above. Suspension a major bonus. I'm saving up to buy a new one. I used my previous one every day with my Springer Spaniel who had spondylosis. It was beyond done when she passed. I'm worried about how shut down, depressed and anxious my current wee girl is getting. She's so sad, seems about ready to give up. It would be so helpful, even to loan one until I buy another. I had no idea her back was injured when I got her, and had no time to get her insured. Im really trying to keep as much money for ongojng vet bills.
Thanks in for reading.

Alison.