Congratulations on your beautiful baby girl! My first child was born in Germany in 1972, 6 weeks later baby and mommy flew home. #1 son lived and traveled in a collapsible bassinet-type thing (purchased in Germany) for the first two months or so. #2 daughter then used it, it was loaned out to cousins and friends after that. Rather soft-sided with a firm bottom, handles and lays flat to store. If you can find something like this, it might work for the trailer the first couple of months.
Enjoy her and nap when you can.