Can't give you a solid answer without knowing either width or backspace of the wheels in question. Based on my experience with my El Camino (same front end structure), I can share this much; I've had both 215/65-15 and 235/60-15 on three different wheels: 15x7 3.5"BS, 15X7 4.25"BS and 15X8 4" BS. All worked well except the 4.25 BS wheel, which had interference issues with the upper control arm, as well as the the tire rubbing the wheelhouse before full lock could be achieved. Out back, 4.25 BS had the tire against the frame rail, but I had 275/60 15 rear tires mounted. With a smaller tire, 4.25" may work.
If you're going to look at a set for sale, take some appropriate tools to measure both width and backspace before you plunk down the cash. In my case, I settled on 15X8 4" BS wheels on all four corners, with 235/60 fronts and 275/60 rears. Any clearance issues I have are very minimal.
Bill