We are having hardwood floors put in through out the house, so have to relocate a shower to the garage near location of old washer hook-up and drain. What kind of shower pan and pump will I need to "pump-up" the shower drain water? Washer stand pipe is about 3 1/2 feet from floor level. This is only about an 8 week fix for the temp shower. Have access to 1/2 bath that will not be effected by the flooring job. Many thanks.