Need advice, do I pass the fat test?

Hi all. Really excited for our upcoming trip but it has recently dawned on me about my physique when it comes to Universal Studios Orlando and it's made me a bit nervous. I don’t mind sharing pics of myself under an alt account.

I'm a larger guy (5'11, 300lbs, 38/40 inch trouser waist, 53 inch chest) but carry most of my weight on my belly. It seems i'm borderline on fitting in some of the rides (namely HP rides and RRR). I’m from the UK so I know the sizes are different to the US.

Can anyone judge if I’ll be good for the rides? Thank you