Strap-on dildo troubles

Hello! My partner and I are having some problems. Every time we try to have sex with a strap-on, something always goes wrong. First, there are seat belts. So we got better harnesses. Now we realize that we are having a hard time finding a dildo that is long enough and thick enough for me to feel. Ideally the girth is 4.5/5″ (even with lube, anything else feels too thick.) but the length is 8/8.5″ insertable (we are both plus sizes so that would also affect my actual Feel the size of the dildo) ). Maybe I’m too picky about dildos, but I thought something like this would be easy to find, but I guess not. Can anyone swipe the link to get something that works?

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