Hi,
I wrote on Bitcointalk, but I write it here too for sure.
If it's of any help, I have Heavycoin wallet and blockchain until about 1 year ago (46 weeks).
I can either send you the wallet+chain data or I can check the wallet if you send it to me.
Unfortunately the HVC devs have disappeared long ago and I think that there are no more nodes working either (I couldn't connect to the last known) ...
Thank you.