I presume the Laserdisc has the stereo soundtrack. I never owned it on Laserdisc but i've owned multiple DVD copies

the R1 Image DVD had a Dolby Digital 2.0 dual mono soundtrack and the UK editions has Stereo but all editions in the UK suffer from incorrect pitched audio due to PAL conversion (even the UK BD)

the more recent editions only have 5.1 though

but yeah, after seeing your comments in the Last of the Mohicans thread about 'merging' the two transfers, i was wondering if this was a possibility