I would have no problem paying a small fee to have a clan pilot. DDO does that with the more attractive races in game. No real benefits besides stat bumps(in both directions) and you look cool. I would not want to see clan mechs available to IS pilots however. Even in 3058, omnimechs are a rarity in the IS. They have been salvaged but taking a mech is only part of it. Its a completely different technology than what the IS uses and techs that understand it are even more rare and they work at a super premium rate. Having a normal mech tech work on an omnimech is comparable to a WW2 aircraft mechanic working on an F22 with no extra training.
As much as I liked the book Main Event and the sequal DRT, it likely couldnt have happened since they didnt even have techs and I dont know about you, but do you know many jet aircraft fighter pilots who know how to fix their engines? Try the same analogy with a mech pilot working on a fusion engine. Handing the tech a wrench or rivitting on a plate of armor, doable. Realinging a gyro or fixing a small nuclear power plant, not so much.
WHATS WRONG WITH THE ANNIHILATOR?
its about the only mech that would keep me in the IS instead of making a clan character and hopefully if we have multi-characters I will have both