How to filter a cell, dependant on 3 other cells.

Hi, I am new here, I am reasonably proficient with excel, also done some C# programming a while back. But I am stumped on this. This is my most ambitious excel project to date. My workbook should be attached. Here is a description of what I have done so far and what the end goal is. I have created a workbook which has 9 tabs, the 6 green ones relate to each different products data set. There is a "Lists" sheet, for my named ranges. The blue tab is home to my main table, this table contains all the product data in it's entirety. At first I thought there is probably a way to access this using formula's than using the lists, but I was not able to do it. The red tab has the start of the quote form for the products. This is the where the lookup formula's would be instigated from. You will note that I have set this table up the same as "Dr List". The results are all to come from drop down lists, which are mostly dependent on others.

So, I can filter the "Dr List" table from left to right to arrive at the data required on the quote form, just don't know how to get there using formulae.
What I have done on the quote form is derived the answers from the "Lists", but then got stuck when it came to the "H" cell. Because this cell is dependent on what is contained in all 3 of "Model", "Type", and "D". In that order, I just don't know how to do it?

Once I have that sorted, I should be able to work out the "KG" cell formula.

Price has to come from the individual product tables to the "Dr List" table, then onto the quote form. At least that is how I see it ATM.

Any insight would be much appreciated. I am really struggling.

Cheers,
Kenny_K