Small changes in my existing url checker

Hello I need new version of URL Checker it needs to test that URL: [login to view URL] I need enter in text field: --first FT4T --midle 14C088 --no-letters=2 FT4T-14C088-AG For example if you put name: FT4T-14C088-AF it can downloadd ZIP I need to check all alphabet AF, AE, AB, AC etc ( and no letters 2 or 3 ) and 1st FT4T - I can define and middle like 14C088 I cam define very similar Go to web site and check 2 names i give you FT4T-14C088-AF FT4T-14C088-AG so we need to check all I need define 1st 2nd and 3rd ( automatic alphabet 2 or 3 letters ) as before. all like before - url change and You need find url for file thats all. Please check the attachment below of my existing url checker.