I need the pedelectric community to advise: opportunity to purchase barely used 8 year old Giant Lafree (with new batteries)...this model uses two lead acid batteries, has three modes of gear motor engagement, but I have not been able to identify the actual model number other than words: version 1.0...Nor have I seen or driven it-this is an ebay item located a three hours' drive from me and requires a car rental, so I want to do as much preliminary research as possible...the price is $500 dollars, but since there is no nearby dealer, and it is a discontinued model, I will offer less...the batteries are still available and cost $70.00 total...I have been told by the owner that the battery is not removable?! The only paperwork the owner has (he is a friend of the deceased owner's widow and has little if any knowledge of the machine) is a brochure with no data.... ps, I live in San Francisco where the hills may be an issue with this heavy model-about 70lbs with batteries.