I'd say go along to Richer Sounds since you are unlikely to find anywhere selling brand new a/v amps and speakers for less, but I notice that you are in Malta. Here is the link anyway just to give you an idea of what is out there and the prices:
http://www.richersounds.com/
A/v wise anything from Yamaha, Sony, Onkyo or Marantz will be competent and no worse than your Kenwood. Finding a similar current production speaker to the Mission 753 might be a bit trickier. Knowing what the budget is would help
Current Lash Up:
TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > Troels Gravesen Faital 3WC-15.