Hi Manvika,
What i understood is you would like to use custom/html offer in A4T redirect?
If this is the case then No,you can not use custom/html offers in A4T.
you must use a built-in redirect offer for activities that use Analytics as the reporting source (A4T). From the Target perspective, HTML offers are opaque: Target can't know that a particular piece of HTML contains JavaScript that instantiates a redirect.
Thanks