Raincover help needed! Silver cross

[Missingmilestones]

Back in 2013 I had a surf for ds2. Loved it. When he was few months we got a carrycot in sale in case we had another baby at some point....
Dd3 is now due in a few weeks and we got the pram etc out. All great except we’ve totally lost the raincover and silver cross don’t seem to sell one separately .....

I’ve looked online but not sure which will fit as it needs to fit the carrycot part initially then the seat but I remember it being really tight to get on so not sure if there was a different one for carrycot but we never used that with ds2 only the seat unit

It’s not easy to get out and try different ones as I’ve been quite unwell with complications and dh works long hours I wondered does anyone know if they still do a cover or if there’s another that would def fit?!
Many thanks

[Missingmilestones]

....ds3 lol!