Get a nice big one that you can afford .. and place to put or it will end up you know where by SWMBO command !  but I will make sure it has digital readout instead of the analogue version.. price difference is small. 

I have a 38 and it is pack to the rafters.. but I have more lens than you...  There is never enough space once you start filling it up.  You may also want to put the battery in there because of corrosion .