Hi all,

currently i am working on a corporate website which have an E-Commerce section with few constraints.
I need few suggestions from you all here to proceed further in my work.

I experimented alot with drupal E-Comm based modules (both on 4.7 & 5.1) & Ubercart.
Now, here comes my initial question :
1) is it safe to move ubercart at this stage(as it is in its alpha versions)? or should i try to move on with E-Commerce modules?

2)My client wish to impose some lmits on number of products a user can buy and the total value of things they can buy - so, how can i achieve this?
NOTE: he wish to have anonymous checkout also(imposing the limits to that visitor to that order)
He wish to have an admin interface where in he can change these limits periodically.

Also, he wish to have the 'price' of the item as dropdown item which should be selected by the user - any ideas about how to do this?

Any suggestions on this regard would be of great help to me to proceed further!