Yeah, body piles can be a pain. I died to one some time ago, and had to try to recover from it. In my opinion, you can't rush them. Like you say, respawn rate is too high. I just sniped it from afar with a bow. And I had to use a crude bow... because I lost all my good gear. Stay as far away from the piles as you can.

Is there any meadows biome around? Maybe retreat further back to an easier area, build a wood house, get some leather armor so you aren't naked at least, make a crude bow, flint and/or wood arrows, get some food, start from a better position. Instead of starting out in such dangerous circumstances. That's what I did (actually I didn't have to backtrack; my spawn point was already in meadows... but that was my launch point for recovery).