Hi Andrés,
Nah, nothing is crazy within modular, that's the fun part of it. You can do almost anything and it usually turns out into a lot of fun, that's the big pro of modular :-D I just wanted to warn you that it can become (very) expensive but if that doesn't frighten you off too much then yeah, go for it! :-) Your indicated budget is a slightly bit low but for starters it should get you somewhere if you plan your rack carefully and if you allow yourself to add something to that budget over the years, then I guess it's fine.
However to do yourself a pleasure for the near future, plan a bit larger case and you really don't have to plan it fully occupied by modules, keep half or at least one third empty, you are going to need that space for the (near) future. My advice for a minimum case size is either 3 x 84 HP or 2 x 168 HP. The Doepfer A-100 LMS9 is 3 x 168 HP and here in Europe the cheapest available case if you count it back to a "Euro per HP" price. That might sound now totally over the top to you but it really isn't once you get deep into modular (not even that deep).
Well, good luck with the planning then and welcome to modular :-D Kind regards, Garfield.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads