Bass on spark 40 into reaper

i need bass in my song i’m writing, octave pedal guitar makes me want to rip my ears out, if i go out and buy a bass, plug into the spark and record onto reaper will that all be fine and dandy and well “bassy”because i’d rather not be forced to buy a new amp on top of a bass.

if I’m recording using the built in interface will it be fine for just some bass under my guitar tracks and what not