It would make a pretty good caravan house battery
i can't see what advantage the lithium sulfur batteries would be except weight. The LYP cells are working out much better and more cost effective. 600Ah @ 12v in LYP 100Ah cell format weighs roughly 80kg (about 200Ah of deep cycle AGM weight) and costs around $3,400, 600Ah of LSP in 600Ah x 6 cell format to give the same 12v weighs roughly 32kg but costs $6,420 roughly. Half the weight but halving the weight of LYP is really required.
I have been messing with this avenue for the LYP cells for over 2 yrs now, I have had a hand in setting up quite few systems for people on the road living in their motorhome or caravan full time and they are over the moon with how well they handle the task compared to the lead acid systems they were stuck with before. As far as useable stored energy the cost is actually cheaper than deep cycle AGM batteries, an added bonus the fact the Peukert factor is virtually zero at the discharge and recharge levels involved and the extended cycle life is a 3 times that of lead acid.
I'm heading towards 1,000 cycles on my house system and there doesn't appear to be any loss of capacity yet, so it's all looking good so far.
When the insurance finally pays up I can get back to my hybrid drive motorhome plan that incorporates the house batteries as drive assist and brake assist using regen braking, that should be an interesting project, maybe an application for the LSF cells, I'll have the room.