I have an 855 which is essentially the same as a 755 but has more power. I bought it used and I am very pleased with it. From your pictures, I would check the alignment of the grill and the hood. It looks like something is offset to one side. Also, it looks like the bottom of the grill is stained. In my tractor the battery is behind the grill. I'd check to see that there is not acid damage to the grill, radiator, and frame. I have the 52 loader and it works fine. I believe the previous poster is correct in that the 70 loader replaced the 52 and that the tractor is 80s vintage not 90s. The seat appears to be at a funny angle (like you would slide off) but maybe it is just a very strong spring for the safety switch that is under it.