First off, I’d express my amazement that you managed to see ‘their passion, their faith, their values and their fierce devotion to an ancient tradition’ in an age which the true face of Torah Jewry is so rarely manifest. This reflects the ‘Ayin Tova’ which you apparently are blessed with.
From your words it is also apparent a number of other great traits which make me believe that you are as good a candidate as ever for conversion. These, coupled with your [legitimate, as you have authentic Jewish blood running through your veins (this on the authority of Halachic giants such as R Y.S. Elyashiv o.b.m.)] feeling of connection should help smooth the transition.
If my intuition is correct, you have it in you to succeed in adapting real fast, and will be ready for shidduchim in short order.
Thirty is not that old these days days, but fortify yourself and be prepared for some very hurtful encounters along the journey. This applies for almost everyone in shidduchim, all the more so for newcomers to our insular community.
All said, I encourage you to go for it! May you merit to feel the Divine Countenance in all your endeavors.