I just bought an old suzuki lt230 and then I saw It had a broken casing (the left one: The side of the clutch) the hole is about 1 Inch by 3 inches and The holes were covered by Silicone and a never saw it when time to buy ... New casing cost 150$ from ebay but I don't wanna spend 150$ for a casing cause I have other repairs to do on it... So, how can I repair that hole ? Can I weld it ?

I have another question, It's missing the Rear brake caliper and pedal , where can I buy these ?

Thank You