all depends on what you want to do and further goals, gave an option above if you wanted to build one which would be good for your 80cm tent, otherwise say if you wanted to go down the marshydro route rethinking on it two of the SP-150 would be the way to go but they are out of stock in europe, but with those you could start with one and buy a second when you have the funds or desire to add more light, cause two of those would work well in that tent.
The TS1000 would be under powered but still grow buds also would be awkward to add a second light later just because of its dimensions, now the tsw2000 would be more than enough and should work well but also 2.5 timers your original budget.
So yeah either build if you want to go down that route, or try the sp-150’s if you can get a hold of them.