If you are anywhere near Middle TN check with Mike Gray before moving any dirt. This fellow is one of the BEST pond builders in the whole TN region. Tell him Pond Boss sent you.
http://www.grayconstruction.net/Your goals are very achievable for a 0.4ac pond. Best results for the BG and achieving your 2lb to 3 lb LMB goal is to be sure to buy pellet trained LMB and feed them pellets with a minimum of 40% protein. Optimal fish food grows big BG the fastest, Optimal also has a special bass pellet. With high quality protein pellets and good bottom aeration you will grow some amazing fish in terms of numbers and sizes a small pond that size. Start with fatheads and small BG, feed them, allow them to grow and then in Fall or the next spring add the juvenile 4”-6”LMB. If available for you, also consider adding some specklebelly sunfish. They will cross with BG but the initial stockers will be impressive to the sizes they obtain. These hybrid cross of BGXRES can grow to 2+ pounds with pellet feeding. If it were my pond I would use the LMB as 4"-6" size that have a longer pellet training - eating growth time to insure best pellet habituation and fastest growth once stocked. In 24-30 months done right, 2 lb LMB could be produced.
When establishing structure the best fishery is produced when the structure encompasses 15% -20% of the shoreline. Create fish cities of structure groupings not just some scattered fish attractor structures. Grouping the structures is important to improving the overall fishery. They do not need to be in the bottom and deepest area; best placement is in 12" to 5ft of water. The best structure refuge areas provide cover and protection of small fish and the larger fish will learn to be near those areas or groupings. Learn more about proper habitat:
https://www.buzzsprout.com/976324/3322504-episode-001-fish-habitatsIdeas
https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=92463#Post92463
