RS*R is the best street exhaust system period IMO. It looks almost identical to stock, sounds just a tad louder but still way below typical ricer levels. Most people would not even notice it. The only down side to it is that it's a chamber design. Chambers are the most restrictive, however, I heard that the RSR is still good about gains.
As far as I know, they do not make the street system for the sol, so you have to buy the one for the EG and cut off about 3 inches off it. I have emailed RSR USA about making a system for he sol and they said that one was in the works and would be availbale by the end of the month (this was like 3 months ago) I may have to do the moded EG way.
As for exhausts, the exhaust's that are the least restrictive and the quiest are twin loop designs. However, currently, there are only 2 reputable manufactures right now and they are hytech and Mugen. If you go mugen, you will have to get the axle back for the EG then find the rest from some other manufacture. As for the hytech, I am pretty sure that they only have if for the teg, and both barnds are uber expensive.
Straight throughs are also very non restrictive, however, are normally much louder.
As for your list, paseshitter blows. Pills_PMD had one for his sol and he said it fell apart real fast.