@manusolomon,
I don't think adding alloys can be an issue, Infact TATA is giving alloys in VX model.
over here in TAI i think everyone has added aftermarket alloys in their respective Stormes and no one has reported any issue. If you really wish to add Alloys to your beast and skeptical about after market ones then you can go for TATA Alloys but that will cost you around 28K.
Accessories i have added in my Storme are:
1. Prestige Alloys. 17K
2. Upsized Maxix tyres. 6K after exchanging the stock tyres
3. Dolphin Seat covers in Beige colour. 11K
4. 3D mats: 2.5K
5. Amplifier and basetube. (No idea as my brother added this thing)
6. Reverse parking system (camera + Sensors): 7K
as of now i am really happy with my Beast