Yes you can just drag them and stretch the wav.
I used Sonic Visualiser (or Audacity) to tempo map the original drums, though you can do it in RealBand with ACW, create a midi metronome track and drag it into Reaper to get a tempo map.
https://vamp-plugins.org/plugin-doc/qm-vamp-plugins.htmlhttps://www.vamp-plugins.org/download.htmlAudacity load your audio file
Analyze > Add Remove > Enable Tempo and Beat Tracker: Beat (& Beat Count)(& Bars)
Analyze > Tempo and Beat Tracker: Beat (or Beat Count)(or Bars)
File > Export > Labels
Sonic Visualiser load your audio file
Transform > Category > Time > Tempo and Beat Tracker: Beat (or Beat Count)(or Bars)
File > Export Annotation Layer txt or csv
https://www.sonicvisualiser.org/ Win/Lin/Mac
right click Save Link/Target As
ReaTrak sonic visualiser import bars or beats.lua ReaTrak audacity import bars or beats.lua Chords from audio to Reaper
Audacity load your audio file
Analyze > Add Remove > Enable Chordino: Chord Estimate
Analyze > Chordino: Chord Estimate
File > Export > Labels
Chordino Vamp Plugin
http://www.isophonics.net/nnls-chromaSonic Visualiser load your audio file
Transform > Chordino
File > Export Annotation Layer txt or csv
https://www.sonicvisualiser.org/ Win/Lin/Mac
Chordino Vamp Plugin
http://www.isophonics.net/nnls-chromaright click Save Link/Target As
ReaTrak audacity chordino chords to regions.lua ReaTrak sonic visualiser chordino chords csv txt to regions.lua 
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