Questions for seasoned designers

Hi, I'm a newbie in this forum, but I've been observing it for a time. I've done some mesh scenery work for a while and need some help from the most seasoned users.I've been doing a project for the Leeward Islands, that is extending to include the winward islands, encompassing the entire lesser antilles, from offshore Puerto Rico to Trinidad & Tobago. I've been using SRTM data to do this work and tried to include, if available, ASTER data, but I need data to improve my result from the LOD9 that I've obtained from the SRTM-3 data that I've got so far.In addition, I got some scanned topographic maps for the U.S. Virgin Islands and for Montserrat at a tiny scale, I'm redrawing them at a larger scale to be useful for work with BLACKART or MicroDEM, but I've not been able to find more data for the rest of the lesser Antilles. Somebody can help me guiding me to such info?