How much would it generally cost to host everything useself, lets go with a simple set up

SIP/call spoof
P1
Mailer
and good data

How much would you have to spend say per month on maintaining tools

It can be targeted like from some sort of crypto breach and etc
or just general data that purely gets put through p1s only.

is there a standard for the min amount of data and its price

Thanks for reading/