Q45t Touring Four Door Sedan

We bought this vehicle in 03-2004, it had 107,186 miles on it, as of today it has just shy of 135,000. The oil and filter have been changed every 3-5000 miles with Mobil 1, we have never had to add oil between changes. New struts and Brake pads were put on in 04. Two new tires this year and the other tires are good. It needs the AC charged or? the Catalytic converter so I'm told by a mechanic has a temporary test pipe installed. All four fender wells have rust around the edges, but of course fixable. Last month we made a 250 mile trip with no problems. I would guess the engine and transmission are worth almost what I'm asking, Keep in mind the vehicle is almost 24 years young. and of course some small things need fixed (trunk lid can't be opened with inside switch and you have to use key) etc. Vehicle is still being driven so it may have a few more miles. The 1994 T models are getting harder to find. Low retail book is $2100.