I would say it depends. a 200 watt panel is a nice size to keep that battery charged and to doube for the ocasional overnight stop when traveling. but it comes down to 1 thing, can you install it yourself, or do you have a buddy who likes beer and knows how to do it. that keeps it dirt cheep.
for example Bourgerv has the panels I just installed for 159.99 US right now
https://www.bougerv.com/products/topcon-16bb-200-watt-solar-panel
and a solar controler
https://www.bougerv.com/products/sunflow-30a-mppt-solar-charge-controller
so for 230ish plus about 30 bucks for wires and such you have the system done. say under 300 when you add the mounts and sealant. that system would be capable of replacing around 60AH a day, if I am guessing.
if you can't do it or don't know a buddy you can bribe with beer/bbq then a mobile rv rapair guy should be able to do it in 3 hours or less, so depending what they charge ...