Everything in life comes at a cost. When you want to find out how she feels, or deepen the rship in to something intimate, there'll always be risk. Try to accept that you'll handle any consequence in trying. Even if things go south and you sit beside her - if you're nice & mature people, you'll be able to talk, understand each other's position and awkwardness should be limited.
I would suggest the next time you have a fun conversation, bring up/ ask if she wants to do the coffee date again, (assuming yes), then suggest a date and time. Take the initiative. Making things happen needs initiative from someone. In general, don't be afraid of her judgments or reactions and be strong in your ideas, and what you like.
Maybe your hints can come across as you trying to make her feel comfortable - relate to her, but not enough to show her who you really are. Be bold in your compliments, and do it via text if it's eaiser before the date. I think you can try asking her how she's dealing with coming out, and how she feels about her sexuality, and penetrate her responses so that her wall comes down and she can open up to you. And in the context of a more deeper conversation, you can tell her you also want to come out, but feel comfortable telling her. And be very selective about where you're going and where you'll sit, so that you can talk privately comfortably, you're physically close to her, & it's not very loud. If things go well, ask her more directly how she feels about you, and go from there.
That's my mostly blind advice in your situation, good luck.