I know renewing your CFI will get you out of the required 1 hour of ground FAR 61.56(f), and I know a simulator can be used 61.56(i) if the training is under part 142. It can't be used for the takeoffs and landings unless its approved for that, which level D sims are. Also 61.56(d), I would say your good because you have passed a pilot proficiency check and your instructor is a pilot check airman and it was for a operating privlage. So I would say your good acording to the feds, now as for not flying a small aircraft in who knows how long just be prepared when your find yourself flying the approach at 100kts while still feeling thats to slow.

Oh and read 61.55(e) and SIC ride is a proficency check!