I´m sorry to say but unless you know exactly how to build and a very skilled builder it`s not realistic to build in 10 Days, most take months and even years...granted they don`t work 24/7 on their armor, look at armorbuilding with TK1636 on Youtube for a complete turtorial and you still need to get your armor, which is also almost impossible in that timeframe (sorry to be MrNegative) and for that I would recomend scouting FB for listings and all other sites that sell stuff, you might get lucky.....HOWEVER I you are interested in 501 standard it would take som effort to "know what to buy"..if you just want something for the TLJ then there`s always Ebay (90% BAD armor and recasters) MTK (trooperbay) is sometimes found on Ebay and that is GREAT ARMOR...or someone sells their ANOVOS Kit at a higher price but...if you need it this quick, it might be your only option and if you got more money than you can spend that also helps and...seeing as I already "shot you down" I might as well point out that for 501st approval the black series helmet don`t go with original trilogy armor - and som postitives, yes there is some - the general public won`t notice if you have the black series helmet mixed with OT armor - they see a Stormtrooper. I really hope you succeed