I have the studded version Drifters (I think they are Desperadoes) without shock cut outs. Hardmounted to the sides of my fender. HOWEVER, I run an HD rear fender and lowered rear signals.

With the stock fender and signal location it is tricky to get a bag set to fit. Drifters are too long. If you relocate your turn signals to the back of your license plate they will then fit fine. Any competent parts guy can look them up and order them if they aren't stocked. Parts Unlimited should still list them, the things have been around for decades (literally).

Any small slant to medium slant bag can work. You may need to space them out a couple inches for clearance, that stock muffler will melt synthetic bags. Some airflow behind them helps, a lot.

How long are your drifter bags?  Thanks

If you wanted to go another way, you could get hard bags.

Mine are hard mounted on mahogany 2X3s. Don't like the yoke they came with. Looks cheap on a solo seat bike. And covers the stainless fender top rub rails.