RE: savage ss hop ups
All of the Hop-ups are the same for all three Savages (unless other wise stated). I havent built the kit but I have disassembled mine a couple of times and if you take you time building I would say I would take about 6 to 8 hours to finish depending on your skill level. I dont think any special tools are required but you might want to get a nice set of allen wrenches because the ones they give you strip out easily.