Askar 91f - 1099€
https://www.astroshop.de/teleskope/askar-apochromatischer-refraktor-ap-91-609-91f-flatfield/p,90697
EQ5 - 395€
https://www.astroshop.de/parallaktisch-ohne-goto/skywatcher-montierung-eq5/p,16081
Onstep (motor for EQ5) - 172€
https://www.ebay.de/itm/197262117558?srsltid=AfmBOorO8tZH6YgloJ2PwrpRxcWCtX6obtWZdbr8xOveImpqpwFSR7tA
ATR585M (First Kit, comes with Stellavita MiniPC) - 1084€
https://www.touptekastro.com/en-eu/products/atr585m
A few notes....
In order to give you a rig according to your specifications, you will need to put in more money than youd like.
A reflector, while giving more hassle, would theoretically allow you to knock off around 500 bucks.
Secondly, you can swap the camera out with a colour 585 (such as the Uranus-C) for the sake of simplicity and saving money, though I'd call this ideal. (we also went over mono vs colour, though if you want a recap I can give you one)
A guiding setup is missing but not a full on requirement for this setup. One on top would cost around 200 bucks more, but it 100% is an upgrade you can do at a later date.
And no, I dont think this is very "budget", just a considerable amount cheaper than the first rig and it is in your set budget range.