List Help

I’m trying to build my first list at 500pts for now and really have no idea what I’m doing so any advice would be helpful. I just know I Like Wreckas and Tankbustas so I want to Blow Stuff Up

Detachments
Shoota Boyz and Wreckas

CHARACTERS

Big Mek (110 Points)
• Warlord
• 1x Drilla
• 1x Kustom Mega-blasta
• Enhancements: Supa-glowy Fing

BATTLELINE

Boyz (90 Points)
• 9x Boy
◦ 1x Big Shoota
◦ 1x Burna
◦ 9x Choppa
◦ 1x Rokkit Launcha
◦ 6x Shoota
◦ 9x Slugga
• 1x Nob
◦ 1x Kustom Shoota
◦ 1x Power Klaw

Boyz (90 Points)
• 9x Boy
◦ 1x Big Shoota
◦ 1x Burna
◦ 9x Choppa
◦ 1x Rokkit Launcha
◦ 6x Shoota
◦ 9x Slugga
• 1x Nob
◦ 1x Kustom Shoota
◦ 1x Power Klaw

DEDICATED TRANSPORTS

Trukk (60 Points)
• 1x Grabbin’ Klaw
• 1x Rokkit Launcha
• 1x Spiked Ram

OTHER DATASHEETS

Tankbustas (145 Points)
• 5x Tankbusta
◦ 5x Busta Rokkit Launcha
◦ 5x Gitstikka
• 1x Nob
◦ 1x Choppa
◦ 2x Rokkit Pistol