I have a 99 model f-250 extended cab, 4x4, PSD. Will a 7.5 meyer plow that was used on a 89 ford pickup mount to my truck? Not sure what the model of the plow is but it is the mounting kit I am worried about. Man said the plow and kit is only about 5 years old. He has got into a money bind and needs to sell it. He wants 1500.00 for everything. If it works is this price good?