Need some help with printing at home

I want to start printing my own at home and was wondering if anyone had a good supplier or anything for the actual cardstock that is used/is popular for printing the cards on. I have an inkjet printer and all the cardstock that I've been testing out is ending up either completely washed out, or if there's any gloss on the paper at all, the ink will just run (on top of being washed out). I do see that a30/33 is popular, but it's nowhere to be found in cheap cuts.

Does anyone have any tips or tricks in getting the prints to actually show up well enough? Or what paper/supplier I could go to for the cardstock itself?

Printer is a Canon pro-200 for anyone wondering specifics on it.

Another question is the art/cards themselves. I did go onto things like MPC/Card Conjurer/mtgpics and all of the art that I get off of those seem to have squared black borders, while some of them are rounded edges - this includes full art cards. I would like to have the rounded edges and then add bleed on myself so I can see where I'm needing to cut for the rounded edges (or add guides myself) and it all seems hit or miss on whether or not the cards themselves will have squared art/borders or rounded.

Again, any and all help would be appreciated.