Proud new owner of a 1992 Gen 1!

[Staplerformilton]

I can hardly believe it myself, but sitting in the garage next to me is a like - new generation one Dodge Viper SRT 10. The car only has 4000 miles on it because I bought it from the dealership that took delivery of the car in 1992. Therefore I am the first registered owner! I couldn't be more proud of this Viper. I plan on keeping it forever. And because I want to keep it forever, I really would like some advice from you guys on the best way to preserve this car in the place where I live. I live in a very harsh climate that has extreme swings in temperature. I'm afraid that the tremendous amount of plastic on the car may begin to crack if I can't find a way to keep it in a climate-controlled garage. Is that true? Is a standard garage with no climate control OK? The place I am keeping it can get as cold as -5 Fahrenheit and is hot is 110 Fahrenheit inside. Also, what leather care products are best? Leather products always say to test in an inconspicuous spot. Well naturally I'm not going to do that with my prized Viper, so I would rather know from your experience which one works best to keep the leather soft and clean. Lastly, when storing this car for the winter, what is the best procedure? I would hate to replace 10 fuel injectors, or have a cracked block from incorrect coolant mixture. Thank for your help!