Thrift Store Tommy

Your Thrift Store items: Cherished Keepsake and Leather Coat are your bread and butter—with double damage as soak, net profit of 2 money each, 0 cost so you can always play them (and don't have to lament their loss to your weakness), and they don't take up ally slots.

Guard Dog is really the only ally you need, since you're all about fighting and damage. Give horror to your other cards and max out that dog damage. Beat Cop could also be considered, but for my money, Guard Dog is where it's at.

Something Worth Fighting For and True Grit are nice-to-haves that basically allow you to split damage away from guard dog, so you can max his passive damage ability. But they're expensive and prey to your weakness. Solemn Vow lets other investigators play into your ability, but it limits your planning to being int he same location and trying to tie logistics together. Only splashed here to save someone's life in a pinch, but more often used as a pseudo-Guts

With the exception of Guard Dog, you want one of your Thrift Store assets to take all of its damage and be defeated each turn to keep your cash engine flowing. This is why Tommy is one of the few investigators who can use Dynamite Blast effectively with consistent damage and a potential windfall for blowing up your assets. Your ability isn't limited to once per round, or really limited in any way, so there's no reason not to kill your assets again and again, recurring them more and more often as your deck dwindles late game.

Save Resourceful for putting one of your Thrift Store assets back into circulation after getting hit with your weakness.

You should have plenty of resources piling up for Dig Deep and Physical Training to pass most checks, and you have a ton of survivor pips (the best of all pips) to throw at checks as well.

Mulligan for your Thrift Store assets first and a weapon or Prepared for the Worst so you can get hunting.

BUY MORE JUNK! (Upgrades)
Ever Vigilant may be a must-buy for Tommy. It will increase your efficiency, since you can install batches of assets to keep your machine running, get you back on your feet immediately after your weakness hits, and make all of your paid assets more profitable (especially True Grit and Something Worth Fighting For). It also compresses your install actions to a single action, which is crucial for freeing you up to focus on what Tommy wants to do most—kill, kill, kill!

I also think it would also be pretty amazing to run Stick to the Plan. It combos beautifully with Ever Vigilant, which qould guarantee early economy and action compression, and it would combo with most of your events, which means you could also start with a Dynamite Blast at the ready.

You can't have an antiques store without a Timeworn Brand! But if you want to keep that economy flexible, then upgrading to .45 Thompson can keep that cash recycling. You could also go full ham with a Flamethrower, because who wouldn't buy an old flamethrower if they saw it at a Thrift Store?

If you can keep your economy flowing, Agency Backupis a great card for this deck and automatically synthesizes with your passive ability. But you could also swap Guard Dog for Brother Xavier or Beat Cop. OR you could just keep your Guard Dogs.

Upgrading Prepared for the Worst into Flare can incentivize you to include higher-cost allies, like making your Backup cost only 2 to install! MADNESS!

I have mixed feelings about subbing out your main Thrift Store items for Elder Sign Amulet and Bulletproof Vest. There's a slightly higher barrier for putting them down (2-cost), but there's an argument that they'd still be a net 2 gain AND you'd be able to fire them off with Ever Vigilant for bonus cash. I would argue AGAINST Armor of Ardennes as it delays the asset from being defeated, which means it gums up your engine, rather than propelling it.