If you're going to take the "I'm just starting out, I want to try with the most basic kit I can get away with." approach, then you'd probably be better off with something like this
BIAB Starter Kit (Peco Boiler, Chiller, Mashing bag, Mash Kit) - The Homebrew Company. I wouldn't touch that kind of stuff with a barge pole, as the thought of boiling wort in a plastic bucket always gave me chills been a family man with dogs. Lots of people brew beer with that exact setup though, quite happily.
By the same measure though, you could just do a couple of stove top batches in the biggest saucepan you can find, then cool it off in the sink. You'll get 5 litres that way easily enough, and find out if it's for you just the same, and all you would have spent out on is ingredients and yeast.
I didn't think that this was what you were looking for though, so replied according to my own experience of jumping on the never ending upgrade escalator of this hobby, and honestly telling you that both my wife and myself wish I'd just bought a single vessel system right off the bat and saved a fortune in the process.
Heck, after spending about £50 on different bits experimenting with trying to build my own false bottom for my last rig, my wife pretty much made me spend £46 on a ready made one.... My pump was nearly £50, and that's without fittings, SSR, heatsink, cabling, fuses, fuse holders, the stock pot.... Yeah, I spent more on that than I just spent....
I got sick of fumbling with the BIAB bags full of heavy wet grain, trying to get a trivet between them and the pot, getting sticky wort on my phone screen, trailing cables etc.
It's horses for courses though, some enjoy that stuff, heck there are folks out there who think those of use with single vessel systems are doing it wrong, and that the only way to go is cool box mash tun, hlt, boil kettle... Go on US sites and they think you are crazy if you don't use gas burners outside.... I can only tell you how I see things, you may share my view, or you might not. Good luck either way, hope it's for you for sure!