Freelander 2 (LR2) Plastic boot protectors

Morning all.
Thanks to some brilliant chaps on here, I’m going to pick up my 2010 Freelander 2 tomorrow. Being as I’ll continue to pick up 25 litre contains of veg oil for my mate for his old VW Transit van (interestingly, it’s done over 300,000 miles), I want to try to protect the FL from any spills, etc.
Does anyone know of any boot-sized boxes, ideally plastic, that would do the job to hold a few 25 litre containers?

LR sell boot mats which are quite strong and thick rubber. I have one. Eggspensive. There are after market cheaper copies which are thinner. None of these fold up around the sides to contain liquids. Yer probably betterer oft using plastic storage containers to put the mucky veg oil barrels in, in case they leak. Or tell him to collect them himself.

Apologies for not explaining better - I have the plastic containers, I just wanted to a redundancy of sorts in case they leak.

update; having trouble finding my V5 so pick up of the FL may be delayed until next week. I’ll get searching for the V5.....

Found it!!!