It works quite similar. Resource merit. Anything that's priced under your merit, you can just buy. If it's above, you roll and hope. They gave ballpark for each dot, but that's in 2004 prices, i have adjusted it for today's prices. Someone with 2 Resources is middle class, 1200-1500$ of disposable income (adjusted to 2000$ for today), used newer car like Toyota Corolla, 8000$ in savings (raised to 15000 for today), renting nice 1-2 bedroom apartment. So, buying something under that 2000$ is automatic. Buying something more expensive requires to either dip into your savings which once depleted, drops you one dot, or you roll. You can only roll for things that are under your savings (assets). Exceptional success means you found great deal, so you don't take full hit on savings, Regular success means you just payed full price out of savings. Failure means you can't buy it, but savings remains intact.
Now, pricing it, if i remember, D20 modern did have some conversion table between DC and $ value. But it was calculated with 2004 prices in mind. DC2=5$. You would probably need to update it to DC2=10$ ( and for every +2 on DC it doubles the value, so DC10=160$, DC15=1000$). For 2026 prices, rise up DC for auto drain to DC17 (2200$) cause everything got so much more expensive.
I use real life prices of things. Wanna buy new Iphone in game? I look it, see that base model 17 is 1030E, so someone with 2000e disposable income could purchase it no problem. Buying 64GB of ram? You gonna need to roll that Resources