I got my R54 used back in 07, I was told it was 1 year old at that time. It is still very airworthy and waiting for the snow piles to shrink. At least the fuse was built in 06 after a crash and burn, the wing is older and was saved from that crash and burn by the PO. So I do not know just how old the wing is.
Here is it as owned by the PO, Yes it is still in that scheme and still looks the same, just a few more bumps and hanger rash.
My avatar is my R54 on snow skis. Because some one said it could not be done.
As to how many flights. I would have to go back thru my log book to start adding them up. My P70 that has been in it the whole time is on its 3rd set of bearings. How many flights does that equal? 300+? at ~10 minutes ea from start to shutdown? I really have no clue how many flights. I now put just enough of them in my log book to satisfy the AMA requirements to be able to sign off waivers as a CD.