Why pay 2-4k? Why not just get the PTS, go rent an airplane until you're within standards. Most twins are going to be 200-250 ish so that means even with 10 hours you're ahead. Basically just a combined instument/commercial with tighter tolerances, I'd think you could do alot of the legwork (studying) yourself and save the money. You might find out in your first flight in a light twin you were already within tolerance then you can take the checkride.. 4 maybe 5 hours total, saved 1k. To each his own.