hi,
To be honest, i'll tell you the negative that happens if you choose me first.I don't have paid plesk available with me. I had used plesk in the past to host but never bothered to know how it works on coding level and how do we create packages inside in it. I had just used it as a end user. Now seeing your requirement i got interested to know and learn about plesk. Yourls code part is easier as far i analysed now.
I think as i have the reference package it will be easier and i can finish this job. I guess i can manage to finish the work with a trial package of plesk itself. We'll discuss in detail if this progress. Thanks.