question & advice...please

[Robocop]

I have been planning and saving for my 331 build up for a long time.I have a chance to sale my new 331 shortblock for what I paid for it and I need advice first.I have been searching this site for advice for months and have found that many people choose to use their block and purchase stroker kits when rebuilding.I have been checking sites and think that I may be able to use better internals (if I use my stock block)due to the savings of going with the stroker kit.I can buy better parts and have cash left for other items.I noticed that many places have a 331 kit for around 1400.00 or so with forged pieces.The price jumps to around 2600.00 with the short block.Why is this?I realize that a few other parts are included as well as assembly but most places use a seasoned block just like my stock one.Will I be better off to buy better internals and place the kit in my block or should I just stay with my already purchased 331 D.S.S. stock stroker?I notice most people worry about quality with an assembly line type stroker short block and I would like the added comfort of knowing mine was built to my picky standards.I know this is long but man I will have a lot of cash in this project and I want to enjoy it for many years so please bare with me.Just give me your past experiences or any added knowledge you may have.Would it be worth putting high dollar forged parts in a stock seasoned block?Or will this average 331 short block suit my needs?I am basically wanting around 400 rwhp and it will be street driven a few times monthly with rare trips to the track.