Just stock the water with trout and charge people to fish there. Same as places like Bewl now do since almost going bankrupt due to only allowing fly fishing. I don't need to spend hours figuring out the numbers to know that that business model works.
I'd also open a tackle shop on site, stocking it with the best selection of lures in the area. Wouldn't be too hard since most places don't have that many. So I'd have that source of income in addition to the tickets.
I don't think Bewl is a very good example for your case, nor do I think that allowing anglers to fish any method will be the saviour of it and if that is your idea of a business model for a trout fishery you are probably doomed. Let's have a look at Bewl water, which advertise along with angling......
Aqua park, walking, bike hire, sailing, wind surfing, open water swimming, canoes, paddle boarding, pedalos, rowing, childrens adventure play area, kids parties, soft play, laser challenge, weddings, private parties, corporate events, coach parties, accomodation, film location, christmas parties, camping, bistro, cafe, tackle shop, triathlon, dragon boat festival. I won't go on and have probably missed some.
Then have a look at the accounts for 2019 (Salomons, available online and you can find them), I'm sure you understand those finances better than me but I shall just cut to Loss for financial year : £2,085,378. Which is better than previously. Wonder how much of that is fishing?
My point being, that if you honestly believe simply letting anglers use lures for trout is the answer you are in cloud cuckoo land.