It all depends upon what type of installation this was. Was this a retro-fit in a cabin or home that previously had standard plumbing? Or was this put in place in a home or area of a home that never had a standard, water using toilet? All that is necessary for the Biolet unit is a vent and electric connection. A standard toilet will need a drain w/toilet flange, a cold water connection and a vent. This will be very difficult (expensive) to install if there never was a water-using toilet there. You have vent, but it may not be usable, due to placement or what it is made of. Do you even have a sewer hook-up or septic field? If not then you really have an expensive proposition. Biolet toilets cost over a grand. Maybe some tree-hugger will buy your used one and help defray the cost of the changeover. See www.biolet.com for more info. Handyman, not a plumber.