One thing you might try is to use an online credit score simulator to estimate what will happen. 

Bitcoin is a currency created with simulated scarcity built in.

Just simulate the actions as if it the real thing and gain experience with the auction process. 

A common mathematical model that companies use for a problem like this is known as a Monte Carlo Simulation.

It roughly simulates the conventional loan I will have in the future, it gives the lender tangible proof their money is working for them, and motivates me a bit to get the project completed.

Have a professional run a Monte Carlo simulation and you will see how different allocations affect your likelihood of success.

It looks like they're trying to simulate a tax lien in a state that doesn't sell tax liens.59-2-1351.7 Partial interest tax sales.(1) For purposes of this section:(a) “Tax sale interest purchaser” means an owner of an undivided interest in a parcel of tax sale property that bid for and purchased the undivided interest:(i) at a tax sale in accordance with Section 59-2-1351.1;(ii) on or after July 1, 2007; and(iii) if the undivided interest in the tax sale property equals 49% or less.

This is about getting into action. 90% of learning comes from simulating the real experiment (which is what this game is designed to do) just google "Edgar Gale" cone of learning".

I wanted to practice analyzing deals with some simulations prior to putting actual money down.

But in every simulation I run, the 15 year loan is giving me a higher net worth after 5 years than the 30 year loan.