For $300 you did great. I have a proline like yours, it is a great machine. Except in wet conditions and steep hills. The belts do wear quickly but it will put a 250 pound guy on a sulky up a hill. As for a trac vac (the trash can and blower motor) I don't know. I would like to buy one just don't have the need yet. A mulch kit you would know if you have it by the discharge shoot being covered.
2008 Ford F-250
7*12 Single axle trailer
Toro Grandstand 60"
(2) Husky Backpack Blower BT150
and American Muscle