Cycling Tanzania on a budget

I've been planning this bike trip for a while and I'm trying to work out the amount of money I should save for this section of the trip. I have namibia and zambia's budgets sorted but am worried about Tanzania. I have read that it could cost me up to 50 dollars a day just to rent a campsite for a night? I dont have alot of money to splurge on a trip and am just wondering how much it would cost to cycle through the country on a budget.
TLDR: planning cycling trip on a budget and am wondering how much it would cost me to cycle through Tanzania.