[QUOTEif the prism view is ok you may be ok as some came without prism foam and many have been serviced already][/QUOTE]
Possibly, but if the light seals are gooey, unlikely. It is definitely worth getting the meter converted to use SR44 silver cells (note NOT lithium LR44). Even if the CLA and service costs twice what you paid, if it is a nice camera you will soon forget what you have spent and will treasure what is undoubtedly one of the finest cameras ever made and a mechanical marvel independent of vulnerable electronics. It will last you a very long time. Despite owning several (!) other cameras my OM1 is one of the most used.