I have a question that I hope some of you locals can answer for me. My wife and I are going to be in the Silverton area the first week in October. .
You may have a problem with snow. Opher and Imogene will have snow at the summit by then, question is how much.
I would email the forest service and get their advise for travel through those passes that late into the year.
Most of the passes close during the winter due to snow and ice, this year Opher was not open until the first part of May and Imogene the first part of June.
Back to the same question, as to how early they (usually) close.
As to SUV, if open you should be fine on Opher, but I would not try Imogene without AT LEAST a high clearance vehicle.
I traveled both passes last week. You may have some tight spots if you have to pass another vehicle on Opher, still doable.
Imogene has some very rough spots on the first part on the Telluride side and some very bad spots on the north side of the summit down to Upper bird camp. Passing is also a problem on the north side in an SUV. A jeep had blown a tire on the shelf above Upper Bird camp and I barely got by (2 inch clearance) with my jeep. Could not have been done with a SUV.
I would recommend checking on the weather conditions first, and would not do Imogene at all.
Sorry to be more objective than positive. I would really like to tell you to go for it.