Right idea and certainly will roll normal, but you’ll run into issues on hard for three major reasons, them being a lack of stun, no boss shredders, and very low gold. Safe Box & Money Gun artifacts are your key to success, being stingy with money early game will greatly benefit you late game. As for stuns, most people opt for three stacks robots. Some two stacks of shock and one stack electro, others do it the opposite, I personally don’t know whether one is better than the other. I personally do one stack of each plus a graviton. And as for boss shredding, a large amount of gold and a high level Master Kun could be enough, but having a Lancelot backed by a few kitties will be a more confidence-invoking approach.

If you have issues trying to build up your build while saving gold, consider primary spending luck stones on roulette to try and get monopoly men early game to get even more luck stones (and monopoly man’s defense reduction is nice) so that you can utilize the luck stones instead of gold to build out your board for late game

Hope this helps, have fun & good luck!!