Looking for some advice on routine. I have the goal of big forearms and don't really care about shoulders so much. 6 day PPL. If anything I'm looking to cut time as I have quite a busy schedule. This ends up taking 1hr15min though I'm probably being way too generous with the rest times. I have a SI spinal injury that I'm not keen on fucking up again which is why I'm sticking to isolation machines like a pussy. RIP 3pl8 squat.

Pull:
- Lat pull down 3x8-12
- Cable row: 3x8-12
- Bicep curl: 3x8-12
- Hammer curl: 3x8-12
- Reverse grip curl: 3x8-12
- DB wrist curls: 3x8-12

Push:
- BB bench: 3x5
- Incline DB bench: 3x8-12
- Tricep push down: 3x8-12
- Chest fly: 3x15-20
- Overhead tricep extension: 3x8-12
- DB wrist curls: 3x20

Legs
- Leg press: 3x8-12
- Calf raise: 3x15-20
- Hip Thrust or RDL: 3x8-12
- Hamstring curls: 3x8-12
- Leg extensions: 3*8-12
- DB wrist curls: 3*20

I should probably do a proper high exertion lift on leg days to replace squats like a bulgarian split squat. Are there any others which don't fuck up a SI joint disc injury?

Thanks