I like the ideas. I would drop the house down to only 4 terms. In 12 years if you can't move into the Senate next then you can run for local office in your state. I really like the idea of the 3-year term to get them off-cycle with the president. One side effect thought might be that the presidential election is a bit of a lame duck. If one side has the house and senate and they can't lose it would people of the other part show up to try and put in a president that has a congress that won't work with them? Also, the pay idea is interesting but they can get so much outside money not sure it will do what you hope.
RE: An Idea: Term Limits and Pay for the U.S. Congress