I have been out of that particular path of practice for few years-however as a former IBCLC of several years, my recommendation is to get involved in working with moms wherever you get the chance. There are LC's in hospitals, in Pediatric offices, and of course, many also work with LLL. As with many opportunities-start networking! Do you have a local BF task force?
Or a good Women's Health program that has new parent classes? They may be thrilled to have some assistance-you will prob have to 'volunteer' your time at first, but would be well worth the efforts. Find a LLL group locally and see if they need some help as well, their are many that are both LLL supporting and IBCLC- Since LLL leaders and counselors are more in the community, it may be easier to get to know someone whom you can tag with and learn and help at the same time.
Get on an LC list serve too-let them know your willingness to learn and your desire to gain the experience towards certification.
There may be some that would rather not have a shadow, but prob many more who are willing and happy to have you on board! Don't give up, it does take time and is quite a bit of work, as in anything that is worth it