I use the Boss DD-7 delay at the end of my chain and it is fine. Electro-Harmonixs is where I would look for a reverb pedal, unless you want to spend big money. I use the Holy Grail pedal and it is great. The minimat does take pedals in front really well so I would not worry too much.
Ah well, I would go for the HOT 100's then, or Celestion Greenbacks. Anything else would be too risky to take a punt on. To my ears some of them sounded awful! But those two and the Alnico blues and golds were great. A lot of guys over on the Matamp forum reckon the Minimat was made for the 100's
That cab stack could be cool. I went for a 2x12 so that if I ever buy a bigger head it will still fit on the top, not sure that would work with a 1x10? Going to the factory is an experience worth doing, just make sure you have a a way of placating your girlfriend whilst there. I have no doubt, unless she loves guitars? , that she will hate it! lol So a nice meal and/or flowers ought to do the trick. :-)
I remember :-) I went with the Hot 100's after listening to them all at Matamp's factory. Don't get me wrong the alnicos were better but for the money the Hot 100's were awesome.