I just got my Elan 7e. I brought it on ebay for a great price. IT was mail in a box in two separate wrappings. One for the camera body itself and the 28-90mm lens. No caps for the body and lens. here are my questions:

- Should i buy a lens cap?
- What can i use to cover the exposed lens for now?
- The 28-90mm lens seems like it's a little dirty. I dont have a cleaning kit, what should i use to clean it instead? I have microfiber cloths i brought since i detail cars and the work requires scratchless towels.
- The mirrors in the body (where the lens meets the body) seems to have some dust on it. What should i use to clean it?

Is it possible to check the camera to see if it's functioning 100% without actually taking pictures and developing them? Batteries came with it and i turned it on and tried to test it out, everything seems fine and looks fine.

Yes you should buy a lens cap
A clean pringles can top will work as a temp
Ive used a mixture of rubbing alcohol and water one my old 35mm camera for years and have noticed 0 problems(dont know about these new fangled things)
The mirrors I dont know.

I don't know if i'm supposed to use liquids. People say it may seep into parts of the lens and body and cause damage.