This is a pretty good little package but might be more s/w than you want.  Quite well put together in my opinion... but do your own due dillgence:

https://github.com/rootzoll/raspiblitz

I run that on the 4Gig pi 4.

Actually a raspberry pi 4 works pretty good.  Those other two are gonna cost you 3 digits a month.

But I guess if you are wanting a fast pipe and the best uptime?