There will be more options for campers this summer in Central Oregon at the Prineville Reservoir. Chris Havel of the Oregon Parks Department says cabins will rent for $65 a night and each cabin is costing $174,00 to build. Recreationalists say they want the cabins because they want more all weather camping and don't own R-V's. Construction cost is being split between the Bureau of Reclamation and Oregon Lottery dollars.   The two new cabins will be added to the five that already exist.