> just use a piece of wire instead Pretty much this. If you can solder though-hole resistors on one side of the board, and you can solder though-hole resistors

> just use a piece of wire instead Pretty much this. If you can solder though-hole resistors on one side of the board, and you can solder though-hole resistors on the other side of the board, you can line the holes up and solder a trimmed-off resistor lead to both sides. Sure it takes time, but so does soldering through-hole components in the first place.