I have an A4000T sitting right here that I installed one of these units in. I am not overjoyed with the performance, but it is better, until I can get the Picasso card working again.
I did have to extend the lines (wires), but that is a snap.
Eye ball everything carefully - it may not be as bad you think.
It's a shame you're so far away, I could pop it in for you.................