Affordable Wedding Outfits for a Sider (6'3" Skinny Guy)

I’m looking for wedding outfits as a sider, but everywhere I look, the options are way too overpriced. Be it readymade or just fabric to be stitched, the prices are insane. I’d really appreciate recommendations for places where I can get affordable wedding outfits that look luxurious and not chapri. To add to the challenge, I’m 6'3" and extremely skinny, so I don’t want outfits that make me look even skinnier or are short in length. It would be amazing if I could find readymade ones that fit well. Any suggestions?