The photos suggest to me your TC is a 1500 series. If so, it is without a basement and has less insolation than the 2500 series. It probably has smaller tanks than the 2500 series. It is definitely lighter weight than the 2500 series. I think the typical 1500 is about 18-inches lower in height than the 2500.
My 1988 Bigfoot is a 11.5 foot 1500 series. I bought it in 2004. Only have had two windows caulk fail. My TC has never been under a roof for storage. I have added every accessory I want, including AGM battery, solar, A/C, TV, microwave, LED lights (inside and out), water accumulator, Wave3 heater and Honda generator with mount. I lived in my Bigfoot four nights a week for five years, never connected to services.
I am sure you will be as happy with your Bigfoot as I am with mine. If you do your homework, I think with about 130 watts of solar and one AGM battery you will not need but one battery. Changing your lights to LED will also help. If you winter camp, the Wave3 will be a great battery saver.
Congratulations on your new to you Bigfoot.
Wayne
