I'm making a map of Japan in QGIS which will span UTM zones 54 and a small part of zone 53 (central and North Honshu). I'm using Natural Earth raster and shapefile datasets with some WGS84 based location points plotted on, but would like to set a projection that represents the distances between points relatively accurately across the whole map (also giving an accurate scale bar).
Would just using Japan UTM zone 54 for the project CRS be suitable, or would someone be able to direct me towards a more suitable projection and how to implement this in QGIS?