That'd shave off a lot of the budget. Lighting equipment can be real pricey. Several hundred a day for a single skypanel, $50 or so for a c stand for a day. Piles up real fast.

Even 3 day long productions on short films have budgets of about 20k with huge crews; most of that money going on lighting gear that isn't even used. Music videos are done on even tighter budgets and those come out very nice.

I work as a spark/gaffer too but I doubt I'd be of any use on something like this over in the UK.