its a shame you dont like cichlids lol your water is perfect for them, alot of people would kill for that water out of their taps lol.
as others have said ro really is the only other option, but its costly. you could get water from the lfs but that will cost too, dont you have a good friend who lives a bit away, could test their water lol.
plants and bog wood could help, but to do it effectivley you'd need a co2 system,
it might be better to get fish suited to your water than to mess with your water, have a ph spike and kill some fish you really want to keep.
i was a tropical planted tank owner, loved the fish you could get, but moved over to a malawi tank and never looked back, there so vibrant active little fish. have a quick look on lakemalawi .co.uk