I think the Distortion+ is a good choice. Maybe it's a sentimental fav for me because it was the first pedal I built, but it's flexible, sounds good, is simple to build and easy to mod (I think Brian Wampler's mods are all over the place and he does a good job of laying things out). One reservation, though: make sure it has enough gain for you. I think a lot of people would consider it more an OD than a distortion. I don't have a strong opinion. With the gain maxxed it's got a fair bit of gain, but it's never over the top. It also functions well as a cleanish boost and OD. But if you're thinking you want heavy metal levels of distortion you're going to be disappointed.
I think it would be a mistake to just discount LM386 based designs out of hand. There are a lot of designs out there and they can sound quite different from one another. Purple plexi? Smash drive? They also tend to be compact, which is going be awfully important for you if you're dead set on stripboarding into a A-size enclosure!
I think it would be a mistake to just discount LM386 based designs out of hand. There are a lot of designs out there and they can sound quite different from one another. Purple plexi? Smash drive? They also tend to be compact, which is going be awfully important for you if you're dead set on stripboarding into a A-size enclosure!