FWIW I was running an 8086 5 Mhz, 20 MB HD (most of it unused), with DOS 3.3, WORD 5.0 and Multiplan and it all worked fine. I also used it for email with compuserve’s basic software (text oriented).
A couple of years ago I upgraded the computer to a Pentium 233 MMX because I was hearing about this thing called the “Internet”. The computer came with Word97 and Excel and a ton of other stuff but I have kept using the old WORD and Multiplan just because I knew them, they did what I needed and I did not want to bother learning new stuff.
I have all the original disks, manuals etc. If this is worth anything to you let me know. (It’s about time I learnt word97 since it is already obsolete 
The directory of my DOS 3.31 disk follows. All the EXE and COM files are commands:
ADAPTEC DVR 335 10-06-89 12:54p ADAPTEC.DVR
ANSI SYS 1,709 09-16-87 12:00p ANSI.SYS
APPEND EXE 5,794 09-16-87 12:00p APPEND.EXE
ASSIGN COM 1,530 09-16-87 12:00p ASSIGN.COM
ATTRIB EXE 10,656 09-16-87 12:00p ATTRIB.EXE
AUTOEXEC BAT 105 05-31-92 8:26p AUTOEXEC.BAT
BACKUP COM 30,048 09-16-87 12:00p BACKUP.COM
CHKDSK COM 11,923 09-16-87 12:00p CHKDSK.COM
COLOR COM 1,092 04-13-87 3:45p COLOR.COM
COLOR DOC 1,305 04-13-87 11:17a COLOR.DOC
COMMAND COM 25,332 09-16-87 12:00p COMMAND.COM
COMP COM 4,183 09-16-87 12:00p COMP.COM
COUNTRY SYS 11,254 09-16-87 12:00p COUNTRY.SYS
DEBUG COM 16,000 09-16-87 12:00p DEBUG.COM
DISKCOMP COM 5,848 09-16-87 12:00p DISKCOMP.COM
DISKCOPY COM 6,264 09-16-87 12:00p DISKCOPY.COM
DISKINIT EXE 49,971 09-16-87 12:00p DISKINIT.EXE
DISPLAY SYS 11,259 09-16-87 12:00p DISPLAY.SYS
DRIVER SYS 1,385 09-16-87 12:00p DRIVER.SYS
EDLIN COM 7,495 09-16-87 12:00p EDLIN.COM
EGA SYS 2,984 02-08-88 12:00p EGA.SYS
ENHDISK SYS 3,321 09-16-87 12:00p ENHDISK.SYS
EXE2BIN EXE 3,050 09-16-87 12:00p EXE2BIN.EXE
FASTOPEN EXE 3,888 09-16-87 12:00p FASTOPEN.EXE
FDISK COM 54,051 09-16-87 12:00p FDISK.COM
FIND EXE 6,403 09-16-87 12:00p FIND.EXE
FORMAT COM 13,643 09-16-87 12:00p FORMAT.COM
GRAFTABL COM 6,208 09-16-87 12:00p GRAFTABL.COM
GRAPHICS COM 7,576 09-16-87 12:00p GRAPHICS.COM
HGC EXE 768 11-01-83 12:27a HGC.EXE
JOIN EXE 9,612 09-16-87 12:00p JOIN.EXE
KEYB COM 10,868 09-16-87 12:00p KEYB.COM
KEYBOARD SYS 41,144 09-16-87 12:00p KEYBOARD.SYS
KEYBSP COM 3,187 05-28-86 12:00p KEYBSP.COM
LABEL COM 2,346 09-16-87 12:00p LABEL.COM
LINK EXE 39,076 09-16-87 12:00p LINK.EXE
MODE COM 15,159 09-16-87 12:00p MODE.COM
MORE COM 282 09-16-87 12:00p MORE.COM
PARK COM 914 10-23-84 12:33p PARK.COM
PRINT COM 8,995 09-16-87 12:00p PRINT.COM
PRINTER SYS 13,559 09-16-87 12:00p PRINTER.SYS
RAMDRIVE SYS 6,459 07-12-85 4:42p RAMDRIVE.SYS
RECOVER COM 5,369 09-16-87 12:00p RECOVER.COM
RENDIR COM 47 01-27-83 6:56p RENDIR.COM
RESTORE COM 35,720 09-16-87 12:00p RESTORE.COM
SETUP1 COM 30,260 09-30-87 12:00p SETUP1.COM
SHARE EXE 8,664 09-16-87 12:00p SHARE.EXE
SMARTDRV SYS 10,188 02-08-88 12:00p SMARTDRV.SYS
SORT EXE 1,946 09-16-87 12:00p SORT.EXE
SPEED COM 26,139 06-01-86 11:55a SPEED.COM
SUBST EXE 10,552 09-16-87 12:00p SUBST.EXE
SYS COM 6,193 09-16-87 12:00p SYS.COM
TREE COM 3,540 09-16-87 12:00p TREE.COM
XCOPY EXE 11,216 09-16-87 12:00p XCOPY.EXE
CONFIG SYS 67 06-23-97 1:55a CONFIG.SYS
(I am feeling nostalgic now… the good old days of Jurassic computing…)