new starter, what other tools?

[sdnatlst]

hi all, new to chiptuning/ ecu works

i have kess v2 reworked and ktag reworked from eBay by good reputable seller.

i also bought ecu clamp, and ecu removing bolts from the obd company

i bought nice probe bdm cage from ebay for 150

i bought power stabiliser from ali xpress for 200

so seems i am setup in a small way, i am wondering,, is any cars i should steer very clear of with my tools ? what success rate will i have to read and write with the kess on OBD scale



thanks!!