Thanks Jay for all the detailed sugesstions that you have given me and I'll be going through all of it in my mind.

One more thing just for your reference is that parts are used in other subassm. and at different levels, eg. a 1/2" Nut may be used at multiple places.

Thanks for your reply and I'll let you know when I get into calmer waters.

Regards
Bhavbhuti