Check out the 1986 Satellite brochure here
. From the weight you give, it appears to be a T2153. You'll find the floor plans on page 6. The specs are on pages 8 & 10 (because of the way the brochure was laid out and scanned, it doesn't fit on one page). If it is a T2153, count over to the 7th column on page 10 to continue with the specs.
If you submit your vin# to Sunline Fan, he will be able to give you more info about your specific camper. There is a post about The SUNLINE registry for Sunline VINs here.
Welcome to Sunline Owners Club. If you have any questions, the members here are happy to help. You'll also find we like to see pictures of other Sunlines. If you can attend one of the Meet & Greets, it's a great way to meet other members.