Have not been on this site in months. And on this post alone I am over a month late on a response, but what the h*ll, ill give my opinion. The bike you have posted the pics for is not a 2007, the Aquila hads not been made since 2000, that one looks to be pre 98 with a newer 90s fork on it. I own 2 90's Fishers, a close to stock 98 Aquila, that is my wifes, and gets ridden maybe 3-4 times per year, awesome old school steel frame by the way. And i also have a 96 Fisher HKEK that has all modern parts on it, "love it, its one of my back ups, and every so often it feels so good to break out a hard tail" 250 is a tad steep for that bike, the most I would pay would of been 200. but more like 150. As far as upgrading it, as I stated, I have thrown $100's into my 96, and I dont regret it at all
If you did buy the bike, and have done any work to it, please respond back, and post some pics.