historical transaction mapping tips

[298k]

Howdy,
Over the years we have used every wallet software imaginable. 

We would like to create a map highlighting the flow of our investment across all the addresses we controlled.

Are there any programs out there that would allow us to privately tag past transactions & addresses on the blockchain & graph their historical relations/flows?

I've seen companies offering SAS software to investigators which do this, but I cringe at the privacy implications of using a SAS service for this.  Not to mention the prices they charge are sky-high.

Any open source scripts come to mind?

Any tips on how best to approach creating a clear transaction/investment map like this?

In advance, thank you.

BTC>298k