Special submit form - Joomla! Forum - community, help and support

hello,

i make users kind of query form , when submit query should posted in specific section/category.

i don't know if explain i'll try.

i want make site have suppliers , buyers.

buyer enter site , submit specific form being sent suppliers subscribed specific category.

for example: buyer submit query vw car part; query being posted on site , email sent suppliers subscribed category contact potential buyer.

i need similar this:



i have fields:

car details:
1. make ( drop down list of categories named car maker post written in category when user select )
2. model ( user should write himself )
3. body style ( drop down menu )
4. trim ( user write himself )
5. year ( drop down menu )

spare part details:
1. name
2. quantity
3. new or used ( checkboxes )

buyer info:
1. name
2. telephone number
3. mobile number
4. email
5. city
6. address
7. country
8. post code

is there way subject of article automatically written? like, when buyer submit form, article subject generated - category - model - make - part name?

is there chance make article make list of last request parts subject of article?

to many questions, hope answer, in advance.

read me <-- please read before posting, means you.