yeah, the bed you can get from aliexpress . Here are the guys that actually make them , so they can make one for your exact machine but first check cause they have many sizes

I would rather start with only 1 good extruder and hot end than 2 bad ones. And build piece by piece the system if i dont have the cash to buy it right now.
I know its hard but you have to take the bullet if you want to sleep well in the future.

The better the system the better will look the final product and more precise.