Cant get wheels to fit

I have a 89 LX with a 5 lug conversion. I am not sure exactly what the parts for the conversion came off because it was like this when I bought it. I bought a set of 1995 style Cobra R 16x8 from american muscle.com. they are +15mm offset and 5.02 back spaceing. I received the wheels today and took one and tried it on the back and the front and it sticks out of the wheel well about a 1/4 inch or so. More in the front than in the rear. In the rear its about dead even with the edge of the wheel well but up front the whole lip pretty much from where the bead of the tire would be to the outside edge of the wheel is hanging out. I was told by american muscle who only deals with mustangs that these would fit w/out any problems. Obviously they were wrong. I really dont have any xtra money to spare to go with a 17 I have no choice but to get either 16's or 15's. I need something because right now I have nothing at all except the ones I got today. I sold my others for money to get my motor back from the machine shop. So I am seeking the advise of you guys can someone please help me on this. I talked to a couple of tire dealers and a 2 of them told me that when I get tires mounted on them and put the car on the ground that the suspension will draw up and inward and the fronts should sit back in the whell well. However a 3rd dealer told me that the suspension will only draw up not inward and those wheels are going to hang out up front regardless.

so how can I tell if they used 96 spindles is there any measurements or anything I can do? I know when I got brakes calipers and rotors for the front I got everything for a 94 GT and it matched up to what was on there.

If you are talking about the steering knucle that the outer tie rod connects to it is curved up and then go straight out towards the front of the car

The rears are dead even with the edge of the fender well. They are 94-95 spindles. If you need a differnt angle pic on the control arm I can take one for you

The wheels on there before were welds pro stars. 15x8 on rear and 15x4 on the front with spacers. The rears were sitting right at the edge of the fender well. The fronts were in a few inchs but they were only a 4 inch width wheel. I listed another post on 5 lug swap if you want to read that. Some guy thats supposedly into nothing but mustangs that works at Jegs claims I need 86-92 spindles and Ranger rotors. He says the control arms wont affect anything. I wish someone had a measurement I could take on the control arms to figure out if they are still stock or if there from a newer year.